Question

Work function energy of metal is 6.63×10power -19 j. Find the value of threshold frequency for it .

Answer 1

Answer with clear explanation :

$threshold \: frequency \\ v_{o} = \frac{ w_{o} }{h} \: \: (h = 6.63 \times {10}^{ - 19} ) \\ v_{o} = \frac{6.63 \times {10}^{ - 19} }{6.63 \times {10}^{ - 19} } = 1 \: hz$

h = Planck's constant.

W• = work function (given)

V• = threshold frequency (find)

the value of threshold frequency is 1 Hz.

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