Temperature is a relative measure or indication of the hotness or coldness of a body. The temperature of a body determines the direction of the flow of energy. The SI unit of temperature is kelvin (K). °C is a commonly used unit of temperature.
The viscous drag increases with increases velocity of the body, but it is found that the body after attaining certain velocity starts moving with a constant velocity called terminal velocity.
The materials that can flow are called fluids. Liquids and gases are collectively known as fluids. Unlike a solid, a fluid has no definite shape of its own.
The property of a body, due to which it tends to regain its original size and shape when deforming force is removed, is called elasticity. The deformation caused is called as elastic deformation.
This article is formulated according to the 8th chapter in the NCERT Syllabus of 11th Std Physics OR 1st PUC Physics. Observation of stars, planets, and their motion has been …
n linear motion, greater in the mass of the body, greater is the force required to produce the linear acceleration in it. Thus in linear motion mass of the body is a measure of its inertia.
This article is formulated according to the 6th chapter in the NCERT Syllabus of 11th Std Physics OR 1st PUC Physics. ∴ 𝑷𝒂𝒗 = 𝑾/𝒕 = 𝑬/𝒕 Instantaneous power It …
There are two ways of multiplying vectors. One way known as the scalar product gives a scalar from two vectors. The other known as the vector product gives a new vector from the two vectors.
Mechanics is the oldest and fundamental branch of physics and it is the study of the state of rest as well as the state of motion of an object under the action of force.
This article is formulated according to the 2nd chapter in the NCERT Syllabus of 11th Std Physics OR 1st PUC Physics. Significant figures indicate the precision of the instrument.
The physical quantities which are independent of each other are called fundamental quantities. There are SEVEN fundamental quantities. They are Length, Mass, Time, Electric current, Thermodynamic temperature, Amount of substance, and Luminous Intensity.
Pluto lies far from the Sun, being the ninth largest body to orbit the Sun. From its discovery in 1930 to 2006 it was the ninth planet in the Solar System.
You must have noticed that the leaves of most trees turn brownish in color before they fall. On the basis of autumn defoliation ( shedding of leaves), trees and plants can bed divided into two groups.
Classical physics was unable to explain phenomena such as atomic spectra, blackbody radiation, the photoelectric effect, and solid specific heat capacity.
Heisenberg uncertainty principle is presented mathematically in 3 versions, taking into consideration the quantities involved in three conservation laws.
Business Analytics refers to the skills, technologies, for iterative exploration and investigation of past business performance to drive business planning.
The following is the list of important fundamental physical constants and their values. Physical constants values are highly useful in many scientific work.
DNA supercoiling is an expression of the strain on a DNA strand, over- or under-winding of that strand. It DNA’s free energy and regulates DNA metabolism
Transcription is the process in which a segment of DNA is copied into a newly synthesized strand of messenger RNA with the use of enzyme RNA polymerase.
An X-ray is a form of high-energy electromagnetic radiation. The X-radiations are invisible and travel in straight lines without transference of matter.
Electronics use active devices to regulate electrons by amplification or correction that differentiates the technology of classical electrical engineering.
The steady-state model was proposed by three physicists in 1948, Hermann Bondi, Thomas Gold, and Fred Hoyle to explain the structure and working of Universe.
Spectroscopic parallax is an astronomical method for measuring the distances to stars. It can be applied to any main sequence stars for which a spectrum can be recorded.
Historically, two basic scenarios of the origin of the Solar System have been discussed. In one, the Solar System formed as a byproduct of the Sun’s formation.
When a main-sequence star has consumed the hydrogen the loss of energy generation causes gravitational collapse and star evolves off the main sequence.
The invention of rockets and space probes made it possible for the first time to get out of Earth and actually see and sometimes go to heavenly bodies.
Humans have looked at Mars in the sky for a long time wondering whether it has life. But Science and Technology can find scientific answers to the question.
The largest storm in the solar system is located on the planet Jupiter. This is known as the Great Red Spot. The winds blow at a speed of up to 432 km/h.
The primary mission of the Voyager space probes was completed in 1989, with the close flyby of Neptune by Voyager 2. The Voyager probes are now on a mission to characterize the outer solar system environment and search for the heliopause boundary, the outer limits of the Sun’s magnetic field, and the outward flow of the solar wind.
Tsiolkovsky’s rocket equation is the fundamental equation on which the motion of the rocket depends. Rockets have become increasingly complicated and sophisticated, bu the basic principle underlying their operation remains the same.
Particle physics is defined as a field of study involving the nature of matter at the smallest quantum scale of subatomic particles and their behavior using Fundamental interactions.
The eclipses are the Light and Shadow game played by Earth, Moon, and the Sun. As we know there are two types of eclipses they are solar eclipse and lunar eclipse, this article mainly emphasizes solar eclipse.
The study of chemical reactions and the study of abundance of molecules in the stars, planets, and also the universe. It uses most of the scientific techniques.
Ennackal Chandy George Sudarshan (ECG) was born into a Syrian Christian family on 16 September 1931 in Pallam, Kottayam, Kerala. His mother, Achamma was a school teacher, and his father E. I. Chandy was a revenue inspector in the old Travancore state.
Energy and matter are the two independent entities which strongly interdependent on one another revealed by Einstein’s mass and energy relation (E=mc2).
Test your AI knowledge with our Ultimate AI Quiz! Whether you’re a student or a professional, take the quiz and learn about this fascinating field!
It is the branch of physics that deals with the concepts of heat and temperature and the inter conversion of heat and other forms of energy.
Temperature is a relative measure or indication of the hotness or coldness of a body. The temperature of a body determines the direction of the flow of energy. The SI unit of temperature is kelvin (K). °C is a commonly used unit of temperature.
The viscous drag increases with increases velocity of the body, but it is found that the body after attaining certain velocity starts moving with a constant velocity called terminal velocity.
The materials that can flow are called fluids. Liquids and gases are collectively known as fluids. Unlike a solid, a fluid has no definite shape of its own.
The property of a body, due to which it tends to regain its original size and shape when deforming force is removed, is called elasticity. The deformation caused is called as elastic deformation.
This article is formulated according to the 8th chapter in the NCERT Syllabus of 11th Std Physics OR 1st PUC Physics. Observation of stars, planets, and their motion has been …
n linear motion, greater in the mass of the body, greater is the force required to produce the linear acceleration in it. Thus in linear motion mass of the body is a measure of its inertia.
We have discussed the motion of a body by considering it as a point object. A point object means an object having a certain mass but negligible size.
There are two ways of multiplying vectors. One way known as the scalar product gives a scalar from two vectors. The other known as the vector product gives a new vector from the two vectors.
Motion of the object needs the concept of Velocity and acceleration. In earlier chapter we have studied the motion but not what causes the motion?
A physical quantity having only magnitude is called a scalar quantity. It is specified completely by a single number along with proper unit.
Mechanics is the oldest and fundamental branch of physics and it is the study of the state of rest as well as the state of motion of an object under the action of force.
This article is formulated according to the 2nd chapter in the NCERT Syllabus of 11th Std Physics OR 1st PUC Physics. Significant figures indicate the precision of the instrument.
The physical quantities which are independent of each other are called fundamental quantities. There are SEVEN fundamental quantities. They are Length, Mass, Time, Electric current, Thermodynamic temperature, Amount of substance, and Luminous Intensity.
Science is organized, systematic, and formulated knowledge obtained through observations, experiments, and verifications.
Pluto lies far from the Sun, being the ninth largest body to orbit the Sun. From its discovery in 1930 to 2006 it was the ninth planet in the Solar System.
The sky appears blue in daytime and red at sunrise and sunset. What is the reason for this? To get the answer you should go into Molecular Physics.
You must have noticed that the leaves of most trees turn brownish in color before they fall. On the basis of autumn defoliation ( shedding of leaves), trees and plants can bed divided into two groups.
#ISRO has accomplished many amazing space feats such as the #Mangalyaan and the #Chandryaan missions. So let’s go to the Indian Space Program #quiz.
Tiger is an animal that is thought to be a symbol of strength and pride. Let us look at the awesome images of Indian tigers.
Solar System is the family of planets on which we exist. Our wonderful blue planet is the third in line from the Sun. We look on Sun every day.
Here is a list of early space firsts achieved by the Superpowers. Most of the early space firsts were scored by the Soviets.
Classical mechanics is merely an estimate of quantum mechanics, and quantum mechanics rules are the most universal laws of nature.
Photoelectrons are electrons emitted from a metal surface. Photoelectric effect is formed by the movement of these electrons in a circuit.
Classical physics was unable to explain phenomena such as atomic spectra, blackbody radiation, the photoelectric effect, and solid specific heat capacity.
Heisenberg uncertainty principle is presented mathematically in 3 versions, taking into consideration the quantities involved in three conservation laws.
In nuclear interaction, conversion of mass into energy and vice versa takes place naturally. Thus mass is another form of energy.
The nucleus consists of protons and neutrons The protons are positively charged. The number of protons in a nucleus is called the atomic number (Z).
Seeing an airplane fly is always a wonderful sight. The airplane has always sparked curiosity in the minds of people. How does it fly?
Test your knowledge of science and technology with this Vgnan Quiz. The quiz consists of 20 questions and each question has one correct answer.
Test your knowledge of Physics with this Vgnan Quiz. The quiz consists of 20 questions and each question has one correct answer.
Most of the things we use today were made by some ‘genius’ inventors. Many of the times we don’t really thank them or even know their names.
Astrophysics is the branch of astronomy that employs the principles of physics and chemistry to ascertain the nature of astronomical objects.
Chemistry is a branch of science that deals with the study of the composition, structure & properties of matter.
The first proposal regarding the possible arrangement of positively and negatively charged particles in the atom was made by J. J. Thomson in 1907.
In the hydrogen atom, there is a single electron that revolves around the nucleus in certain definite orbits, which are known as Stationary Orbits.
Business Analytics refers to the skills, technologies, for iterative exploration and investigation of past business performance to drive business planning.
The following is the list of important fundamental physical constants and their values. Physical constants values are highly useful in many scientific work.
The International System of Units (SI, Système international (d’unités)) consists of 7 base units is known as the SI system of units.
DNA supercoiling is an expression of the strain on a DNA strand, over- or under-winding of that strand. It DNA’s free energy and regulates DNA metabolism
Prokaryotes and eukaryotes perform fundamentally the same process of transcription, with a few key differences.
A solar cell is an electronic device that directly converts sunlight into electricity. Light shining on solar cells produce both current and voltage.
Single junction cells are approaching Photoelectric Conversion Efficiency (PCE) of up to 23%. PCE above 20% is routine in perovskite cells.
An X-ray is a form of high-energy electromagnetic radiation. The X-radiations are invisible and travel in straight lines without transference of matter.
Electronics use active devices to regulate electrons by amplification or correction that differentiates the technology of classical electrical engineering.
The science goals of the James Webb Space Telescope are to look for stars and galaxies that formed just after the Big Bang took place.
The Big Bang Theory is a cosmological model of the observable universe from the earliest known periods through its subsequent large-scale evolution.
The steady-state model was proposed by three physicists in 1948, Hermann Bondi, Thomas Gold, and Fred Hoyle to explain the structure and working of Universe.
Radio astronomy is the sub-field of astronomy that studies celestial objects at radio frequencies. It was first used in 1932.
Visible light astronomy encompasses a wide variety of observations via telescopes that are sensitive to the range of visible light.
Historically, two basic scenarios of the origin of the Solar System have been discussed. In one, the Solar System formed as a byproduct of the Sun’s formation.
Length contraction and time dilation are some of the relativistic effects. They do not fit in with the traditional Newtonian Mechanics.
When a main-sequence star has consumed the hydrogen the loss of energy generation causes gravitational collapse and star evolves off the main sequence.
In 1934, Walter Baade and Fritz Zwicky suggested that Supernovae involve a collapse of a massive star, resulting in a neutron star.
Magnitude is a unitless measure of the brightness of a star in a defined passband, often in the visible or infrared spectrum.
Astronomers and Astrophysicists relaized that the Milky Way galaxy is composed of 3 parts; the disk, the bulge, and the halo.
The invention of rockets and space probes made it possible for the first time to get out of Earth and actually see and sometimes go to heavenly bodies.
The Solar System is a gravitationally connected system containing all the planets orbiting the Sun. It is 4.6 billion years old.
The Voyager 1 and 2 were the iconic spacecraft of NASA from the 1970s that made the first detailed observations of the Outer Solar System.
Humans have looked at Mars in the sky for a long time wondering whether it has life. But Science and Technology can find scientific answers to the question.
The largest storm in the solar system is located on the planet Jupiter. This is known as the Great Red Spot. The winds blow at a speed of up to 432 km/h.
A new feature called the ‘kink’ was discovered in the energy spectrum of the cosmic rays at about 13 quintillion electron volts.
Isn’t it fascinating to think that an interstellar object traveling for millions and billions of years in Space can visit us one day?
Astronomers discovered and characterized a super-Earth and a sub-Neptune exoplanets transiting the M3V dwarf TOI-1266 red dwarf.
Betelgeuse is one of the most easily recognizable stars in the night sky in the Orion constellation. But its brightness suddenly dropped in late 2019.
The primary mission of the Voyager space probes was completed in 1989, with the close flyby of Neptune by Voyager 2. The Voyager probes are now on a mission to characterize the outer solar system environment and search for the heliopause boundary, the outer limits of the Sun’s magnetic field, and the outward flow of the solar wind.
Tsiolkovsky’s rocket equation is the fundamental equation on which the motion of the rocket depends. Rockets have become increasingly complicated and sophisticated, bu the basic principle underlying their operation remains the same.
Particle physics is defined as a field of study involving the nature of matter at the smallest quantum scale of subatomic particles and their behavior using Fundamental interactions.
The eclipses are the Light and Shadow game played by Earth, Moon, and the Sun. As we know there are two types of eclipses they are solar eclipse and lunar eclipse, this article mainly emphasizes solar eclipse.
Meghnad Saha was a great Indian scientist who contributed substantially to physics and to the development of the nation.
Sir C. V. Raman was a great indian physicist and Nobel Laurete making important contributions in the study of effect bearing his name.
The study of chemical reactions and the study of abundance of molecules in the stars, planets, and also the universe. It uses most of the scientific techniques.
Subramanyan Chandrasekhar was a great Indian astrophysicist who derived the Chandrasekhar limit.
Dr. Vikram Sarabhai was a great Indian scientist and institution builder who made substantial contribution to Indian space program.
Homi J. Bhabha was an exceptional Indian Nuclear scientist who showed tremendous scientific leadership both in India and the World.
Sun is the bright yellow ball that you see in the sky during the day. Sun is a great source of light and heat, and energy.
Ennackal Chandy George Sudarshan (ECG) was born into a Syrian Christian family on 16 September 1931 in Pallam, Kottayam, Kerala. His mother, Achamma was a school teacher, and his father E. I. Chandy was a revenue inspector in the old Travancore state.
A Black Body is an ideal physical body that absorbs and emits all the radiation falling on it. It is a theoretical construct.
Energy and matter are the two independent entities which strongly interdependent on one another revealed by Einstein’s mass and energy relation (E=mc2).
Big Bang is based on the model that the Universe was very hot and dense at the beginning and expanded rapidly to the Universe that is now known.
Curious people are amazed by Black Holes. Black hole is still a mysterious object even for the most modern technological tools.
A laser is a device which produces a highly intense beam of light standing for Light Amplification by Stimulated Emission of Radiation.