According to the special theory of relativity, mass of a moving object is considered as infinite when it moves with
Correct answer: A. the velocity of light
- A. the velocity of light
- B. half the velocity of light
- C. twice the velocity of light
- D. thrice the velocity of light
Explanation
The special theory of relativity postulates that as an object with mass accelerates towards the speed of light, its relativistic mass increases asymptotically, effectively becoming infinite at the speed of light. This is due to the relativistic effects that occur at velocities approaching the speed of light. As a result, objects with mass cannot reach or exceed the speed of light, making it an absolute cosmic speed limit. Consequently, options B, C, and D are incorrect as they are either below or exceed this fundamental speed limit.
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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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