EASY
NEET
IMPORTANT
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The energy of the em waves is of the order of . To which part of the spectrum does it belong?
(a)Infra-red rays
(b)Ultraviolet rays
(c) -rays
(d)X-rays

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Important Questions on Electromagnetic Waves
MEDIUM
NEET
IMPORTANT
Light with an energy flux of falls on a perfectly reflecting surface at normal incidence. If the surface area is the average force exerted on the surface is:
