Theory is the name given to a set of limited number of laws in terms of which the behaviour of a physical system can be explained. A good theory should not only explain the allready existing phenomena but it should be able to predict and explain the new phenomenon. For more please visit here: https:Read more
Theory is the name given to a set of limited number of laws in terms of which the behaviour of a physical system can be explained. A good theory should not only explain the allready existing phenomena but it should be able to predict and explain the new phenomenon.
For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
(i). Mass-energy equivalence (ii). Photoelectric effect and (iii). Theory of relativity For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
(i). Mass-energy equivalence
(ii). Photoelectric effect and
(iii). Theory of relativity
Physics is the branch of science that deals with the study of matter, energy, and the fundamental forces of nature, as well as the interactions between them. It aims to understand the behavior of the universe at both macroscopic and microscopic scales, from the motion of celestial bodies to the propRead more
Physics is the branch of science that deals with the study of matter, energy, and the fundamental forces of nature, as well as the interactions between them. It aims to understand the behavior of the universe at both macroscopic and microscopic scales, from the motion of celestial bodies to the properties of subatomic particles. Physics seeks to uncover the laws that govern natural phenomena and applies these principles to explain, predict, and sometimes control various processes in the world around us.
The word physics is derived from the Greek word “physis,” meaning “nature” or “natural things.” The term reflects the field’s focus on understanding the natural world and the fundamental principles that govern its functioning.
In Sanskrit, the equivalent of “physics” is generally referred to as “भूतविज्ञान” (Bhūta-Vijñāna), which translates to “the science of elements” or “the science of nature.” Another term, “द्रव्यगुण” (Dravya-Guna), is used to describe the study of the properties of matter. These terms reflect the ancient Indian understanding of natural phenomena and the exploration of matter and its properties in a scientific context.
The gravitational force is one of the four fundamental forces of nature, responsible for the attraction between objects with mass. It acts over an infinite range and is always attractive, playing a key role in the structure and dynamics of the universe. According to Newton's law of gravitation, theRead more
The gravitational force is one of the four fundamental forces of nature, responsible for the attraction between objects with mass. It acts over an infinite range and is always attractive, playing a key role in the structure and dynamics of the universe. According to Newton’s law of gravitation, the force between two masses is proportional to the product of their masses and inversely proportional to the square of the distance between them. Albert Einstein’s general theory of relativity further refined this understanding, describing gravity as the curvature of spacetime caused by mass and energy.
Important Properties of the Gravitational Force:
1. It is the weakest of the four fundamental forces but dominates at large scales due to its cumulative nature and infinite range.
2. It is always attractive and acts along the line joining the centers of two masses.
3. The force depends on the masses of the objects and the distance between them, as described by
𝐹 = G m1m2.r^2 , where G is the gravitational constant.
4. Gravitational force is independent of the medium through which it acts and affects all objects with mass equally.
Examples of Gravitational Force:
1. The force that keeps planets in orbit around the Sun and governs the motion of celestial bodies.
2. The attraction between Earth and objects near its surface, which we experience as weight.
3. The phenomenon of tides, caused by the gravitational pull of the Moon and the Sun on Earth’s oceans.
4. The binding of galaxies and galaxy clusters through gravitational attraction.
5. The collapse of massive stars into black holes, where gravity becomes extremely strong, warping spacetime significantly.
What is scientific theory?
Theory is the name given to a set of limited number of laws in terms of which the behaviour of a physical system can be explained. A good theory should not only explain the allready existing phenomena but it should be able to predict and explain the new phenomenon. For more please visit here: https:Read more
Theory is the name given to a set of limited number of laws in terms of which the behaviour of a physical system can be explained. A good theory should not only explain the allready existing phenomena but it should be able to predict and explain the new phenomenon.
See lessFor more please visit here:
https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
Mention some important contributions of Albert Einstein to physics.
(i). Mass-energy equivalence (ii). Photoelectric effect and (iii). Theory of relativity For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
(i). Mass-energy equivalence
(ii). Photoelectric effect and
(iii). Theory of relativity
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
Who first gave theory of expanding universe?
Edwin Hubble of U.S.A. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
Edwin Hubble of U.S.A.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
What is physics? What is the origin of the word physics? What is its Sanskrit equivalent?
Physics is the branch of science that deals with the study of matter, energy, and the fundamental forces of nature, as well as the interactions between them. It aims to understand the behavior of the universe at both macroscopic and microscopic scales, from the motion of celestial bodies to the propRead more
Physics is the branch of science that deals with the study of matter, energy, and the fundamental forces of nature, as well as the interactions between them. It aims to understand the behavior of the universe at both macroscopic and microscopic scales, from the motion of celestial bodies to the properties of subatomic particles. Physics seeks to uncover the laws that govern natural phenomena and applies these principles to explain, predict, and sometimes control various processes in the world around us.
The word physics is derived from the Greek word “physis,” meaning “nature” or “natural things.” The term reflects the field’s focus on understanding the natural world and the fundamental principles that govern its functioning.
In Sanskrit, the equivalent of “physics” is generally referred to as “भूतविज्ञान” (Bhūta-Vijñāna), which translates to “the science of elements” or “the science of nature.” Another term, “द्रव्यगुण” (Dravya-Guna), is used to describe the study of the properties of matter. These terms reflect the ancient Indian understanding of natural phenomena and the exploration of matter and its properties in a scientific context.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
What is gravitational force? Mention its important properties. Give some examples of gravitational force.
The gravitational force is one of the four fundamental forces of nature, responsible for the attraction between objects with mass. It acts over an infinite range and is always attractive, playing a key role in the structure and dynamics of the universe. According to Newton's law of gravitation, theRead more
The gravitational force is one of the four fundamental forces of nature, responsible for the attraction between objects with mass. It acts over an infinite range and is always attractive, playing a key role in the structure and dynamics of the universe. According to Newton’s law of gravitation, the force between two masses is proportional to the product of their masses and inversely proportional to the square of the distance between them. Albert Einstein’s general theory of relativity further refined this understanding, describing gravity as the curvature of spacetime caused by mass and energy.
Important Properties of the Gravitational Force:
1. It is the weakest of the four fundamental forces but dominates at large scales due to its cumulative nature and infinite range.
2. It is always attractive and acts along the line joining the centers of two masses.
3. The force depends on the masses of the objects and the distance between them, as described by
𝐹 = G m1m2.r^2 , where G is the gravitational constant.
4. Gravitational force is independent of the medium through which it acts and affects all objects with mass equally.
Examples of Gravitational Force:
1. The force that keeps planets in orbit around the Sun and governs the motion of celestial bodies.
2. The attraction between Earth and objects near its surface, which we experience as weight.
3. The phenomenon of tides, caused by the gravitational pull of the Moon and the Sun on Earth’s oceans.
4. The binding of galaxies and galaxy clusters through gravitational attraction.
5. The collapse of massive stars into black holes, where gravity becomes extremely strong, warping spacetime significantly.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/