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Grade: 10
        If the operating potential in an X-ray tube is increased by 1%, by what percentage does the cutoff wavelength is 30 pm, find the electric field between the cathode and the target. 
5 years ago

Answers : (1)

Jitender Pal
askIITians Faculty
365 Points
							we know λ = hc/V
Now λ = hc/1.01 = λ/1.01
λ – λ’ = 0.01/1.01 λ.
% change of wave length = 0.01* λ/1.01 * λ * 100 = 1/1.01 = 0.9900 = 1%.

						
5 years ago
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