Percent error = (Measured Value - True Value /True Value) × 100 For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
Percent error = (Measured Value – True Value /True Value) × 100
Examples include m/s (velocity), N (Newton) (force), etc. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
Examples include m/s (velocity), N (Newton) (force), etc.
Significant figures include all certain digits and the first uncertain digit. For example, 0.00450 has 3 significant figures. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
Significant figures include all certain digits and the first uncertain digit. For example, 0.00450 has 3 significant figures.
A scientific theory needs modification or replacement when it can no longer adequately explain or predict observed phenomena, or when new evidence contradicts its predictions. This typically happens when the theory encounters anomalies or fails in certain situations where it was previously applicablRead more
A scientific theory needs modification or replacement when it can no longer adequately explain or predict observed phenomena, or when new evidence contradicts its predictions. This typically happens when the theory encounters anomalies or fails in certain situations where it was previously applicable, or when a more comprehensive or accurate theory is developed.
For example, Newtonian mechanics, which was widely accepted for centuries, was modified after experiments showed that it could not explain the motion of objects at very high speeds or in very strong gravitational fields. This led to the development of Einstein’s theory of relativity, which provides a more accurate description of gravity and motion at large scales and high velocities, replacing Newtonian physics in these contexts.
Similarly, classical electromagnetism could not explain phenomena on the atomic scale, such as the behavior of electrons. This limitation was addressed by the development of quantum mechanics, which replaced classical theories to explain the behavior of matter and energy at very small scales.
In both cases, the theories were not discarded entirely but were modified or extended to accommodate new data and observations, leading to a deeper and more complete understanding of the natural world.
The scientific method is a systematic approach used by scientists to investigate natural phenomena, acquire new knowledge, or validate existing theories. It ensures that conclusions are based on empirical evidence and logical reasoning rather than assumptions or speculation. The process begins withRead more
The scientific method is a systematic approach used by scientists to investigate natural phenomena, acquire new knowledge, or validate existing theories. It ensures that conclusions are based on empirical evidence and logical reasoning rather than assumptions or speculation. The process begins with observation, where a phenomenon or problem is identified and carefully studied. This leads to the formulation of a hypothesis, a testable statement or prediction based on the observation. Scientists then conduct experiments or gather data to test the hypothesis under controlled conditions. The results are analyzed to determine whether they support or refute the hypothesis. If the hypothesis is validated, it may contribute to forming a broader theory or law. If not, the hypothesis is modified or discarded, and the process begins again. Throughout, peer review and replication ensure reliability and accuracy. The key steps involved are observation, hypothesis formulation, experimentation, analysis, conclusion, and, if necessary, revision. This iterative process underpins scientific progress by ensuring that findings are reliable and objective.
Physical and biological sciences are two broad branches of science that focus on understanding the natural world, but they differ in their areas of study. Physical sciences deal with non-living systems and the fundamental principles governing matter, energy, and the forces of nature. This includes dRead more
Physical and biological sciences are two broad branches of science that focus on understanding the natural world, but they differ in their areas of study. Physical sciences deal with non-living systems and the fundamental principles governing matter, energy, and the forces of nature. This includes disciplines such as physics, chemistry, astronomy, and geology, which explore phenomena ranging from atomic interactions to the behavior of celestial bodies. In contrast, biological sciences focus on living organisms, their structure, function, evolution, and interactions with their environment. This branch includes fields like biology, zoology, botany, microbiology, and genetics. While physical sciences investigate the inanimate aspects of the universe, biological sciences aim to understand the complexities of life. Both are interconnected, as physical principles often underpin biological processes, such as the role of chemistry in metabolism or physics in understanding biomechanics. Together, they provide a comprehensive view of the natural world.
This question related to Chapter 1 physics Class 11th NCERT. From the Chapter 1. Units and Measurements. Give answer according to your understanding.
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.
How is percent error calculated?
Percent error = (Measured Value - True Value /True Value) × 100 For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
Percent error = (Measured Value – True Value /True Value) × 100
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
What are derived units?
Examples include m/s (velocity), N (Newton) (force), etc. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
Examples include m/s (velocity), N (Newton) (force), etc.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
Explain significant figures.
Significant figures include all certain digits and the first uncertain digit. For example, 0.00450 has 3 significant figures. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
Significant figures include all certain digits and the first uncertain digit. For example, 0.00450 has 3 significant figures.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
When does a scientific theory need modification or replacement by a new theory? Briefly explain giving suitable examples.
A scientific theory needs modification or replacement when it can no longer adequately explain or predict observed phenomena, or when new evidence contradicts its predictions. This typically happens when the theory encounters anomalies or fails in certain situations where it was previously applicablRead more
A scientific theory needs modification or replacement when it can no longer adequately explain or predict observed phenomena, or when new evidence contradicts its predictions. This typically happens when the theory encounters anomalies or fails in certain situations where it was previously applicable, or when a more comprehensive or accurate theory is developed.
For example, Newtonian mechanics, which was widely accepted for centuries, was modified after experiments showed that it could not explain the motion of objects at very high speeds or in very strong gravitational fields. This led to the development of Einstein’s theory of relativity, which provides a more accurate description of gravity and motion at large scales and high velocities, replacing Newtonian physics in these contexts.
Similarly, classical electromagnetism could not explain phenomena on the atomic scale, such as the behavior of electrons. This limitation was addressed by the development of quantum mechanics, which replaced classical theories to explain the behavior of matter and energy at very small scales.
In both cases, the theories were not discarded entirely but were modified or extended to accommodate new data and observations, leading to a deeper and more complete understanding of the natural world.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
What is scientific method? Mention the various steps involved in it.
The scientific method is a systematic approach used by scientists to investigate natural phenomena, acquire new knowledge, or validate existing theories. It ensures that conclusions are based on empirical evidence and logical reasoning rather than assumptions or speculation. The process begins withRead more
The scientific method is a systematic approach used by scientists to investigate natural phenomena, acquire new knowledge, or validate existing theories. It ensures that conclusions are based on empirical evidence and logical reasoning rather than assumptions or speculation. The process begins with observation, where a phenomenon or problem is identified and carefully studied. This leads to the formulation of a hypothesis, a testable statement or prediction based on the observation. Scientists then conduct experiments or gather data to test the hypothesis under controlled conditions. The results are analyzed to determine whether they support or refute the hypothesis. If the hypothesis is validated, it may contribute to forming a broader theory or law. If not, the hypothesis is modified or discarded, and the process begins again. Throughout, peer review and replication ensure reliability and accuracy. The key steps involved are observation, hypothesis formulation, experimentation, analysis, conclusion, and, if necessary, revision. This iterative process underpins scientific progress by ensuring that findings are reliable and objective.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
What are physical and biological sciences?
Physical and biological sciences are two broad branches of science that focus on understanding the natural world, but they differ in their areas of study. Physical sciences deal with non-living systems and the fundamental principles governing matter, energy, and the forces of nature. This includes dRead more
Physical and biological sciences are two broad branches of science that focus on understanding the natural world, but they differ in their areas of study. Physical sciences deal with non-living systems and the fundamental principles governing matter, energy, and the forces of nature. This includes disciplines such as physics, chemistry, astronomy, and geology, which explore phenomena ranging from atomic interactions to the behavior of celestial bodies. In contrast, biological sciences focus on living organisms, their structure, function, evolution, and interactions with their environment. This branch includes fields like biology, zoology, botany, microbiology, and genetics. While physical sciences investigate the inanimate aspects of the universe, biological sciences aim to understand the complexities of life. Both are interconnected, as physical principles often underpin biological processes, such as the role of chemistry in metabolism or physics in understanding biomechanics. Together, they provide a comprehensive view of the natural world.
This question related to Chapter 1 physics Class 11th NCERT. From the Chapter 1. Units and Measurements. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
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/