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The stopping potential V for photoelectr...

The stopping potential `V` for photoelectric emission from a metal surface is plotted along Y - axis and frequency `v` of incident light along X - axis . A straight line is obtained as shown . Planck's constant is given by

A

Slope of the line

B

Product of slope on the line and charge on the electron

C

Product of intercept along Y-axis and mass of the electron

D

Product of slope and mass of electron

Text Solution

Verified by Experts

The correct Answer is:
B
`eV_0=hv-hv_0impliesV_0(h/e)v-(hv_0)/e`
Slope `=h/e`
Now, with equation y = mx + c
`m =h/e , :. H = me` , where m is slope.
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