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Question

If a source of power 4 kW Produces 1020 photon/ second the radiation belongs to apart from the spectrum called

A
yrays
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B
X-rays
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C
ultraviolet rays
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D
microwaves
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Solution

The correct option is B X-rays
4×103=1020×hv
Where V=frequency
V=4×1031020×6.023×1034V=6.64×1016Hz
This frequency lie in the bond of Xrays.

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