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Physics - Modern Physics Question with Solution | TestHub

PhysicsModern PhysicsPhotoelectric effectEasy2 minPYQ_2020

PhysicsEasysingle choice

In photoelectric effect the slope of straight line graph between stopping potential $(v_{0})$ and frequency of incident light $(v)$ gives

Options:

Answer:

Solution:

We know that

$E = ϕ + k E$

$\Rightarrow h υ = W + e V_{0}$

$\Rightarrow e V_{0} = h υ - W$

$V_{0} = (\frac{h}{e}) υ + (- \frac{W}{e})$

Compare this with equation of line $y = m x + c$

$m =$ slope of graph $= \frac{h}{e}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Modern PhysicsSubtopic:Photoelectric effect

⏱ 2mℹ️ Source: PYQ_2020

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