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The ratio of slopes of K(max) vs. V and ...

The ratio of slopes of `K_(max)` vs. V and `V_(0)` vs. v curves in the photoelectric effect gives (v= freqency. `K_(max)`= maximum kinetic energy, `V_(0)`=stopping potential) :

A

charge of electron

B

planck's constant

C

work function

D

threshold frequency

Text Solution

Verified by Experts

The correct Answer is:
A
`hv=hv_(0)+eV_(0)`
`eV_(0)=hv-hv_(0)`
`V_(0)=(h)/(e)v-(h)/(e)V_(0)` . . .(i)
`("Slope")_(1)=h//e`
`(KE)_(max)=hv-hv_(0)`
`("Slope")_(2)=h`
`("Slope")_(2)//("Slope")_(1)=(h)/(h//e)=e`
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