The special theory of relativity is based upon:(I) the laws of physics are the same in all inertial frames.(II) The speed of light in free space has the same value for all observers regardless of their state of motion.
Correct answer: C. I and II
- A. I only
- B. II only
- C. I and II
- D. None of the above
Explanation
1. I is the first postulate of newton's theory of relativity which states that laws of physics are only same in inertial frames so I is correct2. II is the second postulate of Newton's theory of relativity which states that speed of light has a constant value for all observers regardless of their motion. Hence II is correct. Both of these options are right. C is right.
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Classical physics cannot explain blackbody radiation and related observations, leading to Planck’s quantum theory, in which energy is emitted or absorbed in discrete packets. Photons provide the particle model of light, with energy and momentum linked to frequency and wavelength, including the photoelectric effect and its threshold frequency.
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