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A metal whose work function is 3.3eV is ...

A metal whose work function is `3.3eV` is illuminated by light of wavelength `3 xx 10^(-7)m`. What is the threshold frequency for photoelectric emission? Plank's constant `= 6.6 xx 10^(-34)` Js?

A

`0.4 xx 10^(15) Hz`

B

`0.8 xx 10^(15)Hz`

C

`1.6 xx 10^(15) Hz`

D

`3.2 xx 10^(15)Hz`

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PHYSICS GALAXY - ASHISH ARORA-PHOTOELECTRIC EFFECT AND MATTER WAVES-Numerical MCQs
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