NEET Physics Mass-Energy Relation MCQ Question
Which of the following statements about the mass-energy relation and nuclear density is correct?
The mass-energy relation implies that mass and energy are conserved separately in nuclear reactions.
Nuclear density is independent of the size of the nucleus, while atomic mass varies significantly with size.
Einstein's equation E = mc² indicates a unified law of conservation of mass and energy.
The atomic mass unit (u) is defined as the mass of a hydrogen atom, making it a fundamental unit for all elements.
Correct Answer
Detailed Explanation
Einstein's equation E = mc² signifies that mass and energy are interchangeable and must be considered together in nuclear reactions, as stated in the context. Option A incorrectly states that mass and energy are conserved separately, which contradicts the unified law. Option B is correct in that nuclear density is indeed independent of size, but it doesn't address the mass-energy relation. Option D misdefines the atomic mass unit, which is based on the carbon-12 atom.
Found an issue with this question?
Related Questions
More from Mass-Energy Relation
Which of the following statements regarding the mass-energy relation and nuclear binding energy is correct?
Match Column-I with Column-II. Column-I Column-II (a) Mass defect (i) Binding energy per nucleon (b) 16 O nucleus (ii) Energy associated wit...
What is the term used to describe the difference in mass between a nucleus and the total mass of its constituents?
More from
Match Column-I with Column-II. Column-I Column-II (a) Strong nuclear force (i) Independence from nucleon type (b) Saturation property ...
Assertion (A): In controlled thermonuclear fusion, achieving high temperatures is crucial for the fusion of deuterons. | Reason (R): The high temperat...
What is the average energy released per fission of 239Pu?