Questions
Light appears to travel in straight lines since
a
It is not absorbed by the atmosphere
b
It is reflected by the atmosphere
c
Its wavelength is very small
d
Its velocity is very large
detailed solution
Correct option is C
Small wavelength of light makes it difficult to observe diffraction effects.Talk to our academic expert!
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The periodic time of rotation of a certain star is 22 days and its radius is 7108 meters. If the wavelength of light emitted by its surface be 4320 , the Doppler shift will be (1 day = 86400 sec)
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