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Grade 12Electrostatics

Plot a garph showing the variation of stopping potential with the frequency of incident radiation for two different photo sensitive materials having work function W¹ and W²(W¹greater than W²).on what factors does the (1) slope And (2) intercept of the lines depend

Profile image of akshit soni
9 Years agoGrade 12
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1 Answer

Profile image of Vikas TU
9 Years ago
From the planck’s enery eqn. we know,
hv = hv0 + W1
or
hv/e = W1/e + Vs
 
y = +mx – c
now m is the slope that is v and Work function is the intercept.
Now for greater work function intercept that is negative intercept would be more and the graph would shift lower depending on the frequency .i.e. slope.