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Photons of an electromagnetic radiation ...

Photons of an electromagnetic radiation has an energy 11 keV each. To which region of electromagnetic spectrum does it belong ?

A

Infrared

B

Microwave

C

X-ray

D

Y-rays

Text Solution

Verified by Experts

The correct Answer is:
C
`E = 11 "Kev" = 11 xx 10^(3) xx 1.6 xx 10^(-12)`
`11 xx 10^(-12) xx 1.6 = (hc)/( lambda)`
`lambda = (6.6 xx 10^(-24) xx 3 xx 10^(7) )/( 1.6 xx 11 xx 10^(-18) ) = 1.125 xx 10^(-18)`m
`= lambda = 1.125 Å`
This wave lies in the region of X-ray
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