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Byju's Answer
Standard XII
Physics
Source of EM Waves
Identify the ...
Question
Identify the electromagnetic wave whose photons has the highest energy .
A
X-ray
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B
ultraviolet light
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C
green light
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D
microwave
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E
radio wave
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Solution
The correct option is
D
X-ray
Energy of photon
E
=
h
ν
⟹
E
∝
ν
Increasing order of frequency :
Radio wave < micro wave < green light < ultraviolet light < X-ray.
Thus frequency of X-ray is the highest.
⟹
Energy of X-ray photon is the highest.
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