Newtons laws do not hold good for particles_______________?
Correct answer: D. move with velocity comparable to velocity of light
- A. at rest
- B. moving slowly
- C. move with high velocity
- D. move with velocity comparable to velocity of light
Explanation
Newtonian mechanics is a classical approximation and becomes inaccurate when a particle's speed is comparable to the speed of light, approximately 3 x 10^8 m/s. Option d is correct; option c is insufficient because Newton's laws remain useful at ordinary high speeds that are still much less than 3 x 10^8 m/s.
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