Q.

A photon of radiation of wavelength 4000 Ao  has an energy ‘E’. The wavelength of photon of radiation having energy 0.5E will be

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a

8000 Ao

b

2000 Ao

c

4000 Ao

d

6000 Ao

answer is A.

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Detailed Solution

E1E2=λ2λ1E0.5E=λ24000λ2=8000A∘
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