Homework Answers
1) d- gamma rays are those which are sensitive to our eyes and adjacent to visible light and has the shortest wavelengths and among the most energetic region in the spectrum.
2) C- we know that speed of light is constant to an observer who is standing still or stationary. and since nothing can travel faster than light so, 1.3c is eliminated as well.
moreover speed of light is independent of time, so option C is relevant.
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