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Question
A nucleus, kept at rest in free space, break up into two smaller nuclei of masses m and 2m. Total energy generated in this fission is E. The bigger part is radioactive, emits five gamma ray photons in the direction opposite to its velocity, and finally comes to rest. Now, answer the following questions: (given ; h = 6.6×10−34;m=1.00×10−26kg,E=3.63×10−8ms−1.
The wavelength of the gamma ray is?
A nucleus, kept at rest in free space, break up into two smaller nuclei of masses m and 2m. Total energy generated in this fission is E. The bigger part is radioactive, emits five gamma ray photons in the direction opposite to its velocity, and finally comes to rest. Now, answer the following questions: (given ; h = 6.6×10−34;m=1.00×10−26kg,E=3.63×10−8ms−1.
The wavelength of the gamma ray is?
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Solution
The correct option is A 0.02A0
E=hc/λsubstituting the value and we get the wavelength of gamma rayλ=6.6×10−34×3×108/3.63×10−8λ=2×10−12m=0.02A0
E=hc/λ
substituting the value and we get the wavelength of gamma ray
λ=6.6×10−34×3×108/3.63×10−8
λ=2×10−12m=0.02A0
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