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Energy of one photon of radiant energy i...

Energy of one photon of radiant energy is 15 keV. Then this radiation belongs to ……. Parts of electromagnetic waves.

A

ultraviolet

B

gamma waves

C

X - rays

D

infrared

Text Solution

Verified by Experts

The correct Answer is:
C
Energy of one photon of given radiation is
`E = (hc)/(lambda)`
`therefore lambda = (hc)/(E )`
`= (6.625xx10^(-34)xx3xx10^(8))/((15xx10^(3))(1.6xx10^(-19)))`
`=0.8281xx10^(-10)m=0.8281 Å`
`rArr` Above wavelength corresponds to X - rays in the electromagnetic spectrum.
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