Fundamental laws of physics require

examrobotsa's picture
Q: 66 (NDA-II/2021)
Fundamental laws of physics require

question_subject: 

Science

question_exam: 

NDA-II

stats: 

0,20,29,11,3,1,34

keywords: 

{'fundamental laws': [0, 0, 0, 1], 'physics require': [0, 0, 0, 1], 'charge': [1, 0, 4, 12], 'conservation': [3, 1, 9, 28], 'linear momentum': [0, 0, 3, 5], 'energy': [0, 0, 1, 2], 'momentum': [0, 1, 0, 3]}

The fundamental laws of physics involve several principles that play a crucial role in understanding the behavior of matter and energy in the universe. Among these principles are the conservation of energy, momentum, and charge.

Option 1, which suggests conservation of energy and non-conservation of charge, is incorrect. Energy is a fundamental quantity that is conserved in all physical processes, meaning it cannot be created or destroyed, only transferred or transformed. Charge, on the other hand, is also conserved, meaning the total amount of electric charge in a closed system remains constant.

Option 2, which proposes conservation of charge and non-conservation of linear momentum, is also incorrect. Charge is indeed conserved, as mentioned above. Linear momentum, which is the product of an object`s mass and velocity, is also conserved in isolated systems, meaning the total momentum before and after a collision remains the same.

Option 3 correctly identifies the conservation of charge but incorrectly suggests non-conservation of energy. As mentioned earlier, energy is always conserved in physical processes.

Option 4 is the correct answer. It states that the fundamental laws of physics require conservation of energy, momentum, and charge. These principles help explain and predict the behavior of particles and systems in various physical scenarios.