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Physics - Modern Physics Question with Solution | TestHub

PhysicsModern PhysicsPhotoelectric effectEasy2 minPYQ_2020

PhysicsEasysingle choice

To decrease the cut-off wavelength of continuous $X$ -ray by $25 %$ , the potential difference across the $X$ -ray tube

Options:

Answer:

Solution:

$λ = \frac{h c}{e V}, \frac{λ_{1}}{λ_{2}} = \frac{V_{2}}{V_{1}}, λ_{2} = \frac{3}{4} λ_{1}$

$V_{2} = \frac{4}{3} V_{1} (w h i c h i s e q u a l t o \frac{100}{3} % i n c r e a s e)$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Modern PhysicsSubtopic:Photoelectric effect

⏱ 2mℹ️ Source: PYQ_2020

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