Q.

The work function of Aluminium and Gold are 4.1 eV and 5.3 eV respectively. The ratio of the slope of the stopping potential versus frequency plot for Gold to that of Aluminium is

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a

1.2

b

1.26

c

1

d

1.5

answer is A.

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Detailed Solution

V0=hevv0
=slope of vv0 graph = heit is independent of nature of metal

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The work function of Aluminium and Gold are 4.1 eV and 5.3 eV respectively. The ratio of the slope of the stopping potential versus frequency plot for Gold to that of Aluminium is