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  • Photoelectric emission occurs only when the incident light has more than a certain minimum:Option: 1 frequency<

Photoelectric emission occurs only when the incident light has more than a certain minimum:

Option: 1

frequency


Option: 2

power


Option: 3

wavelength


Option: 4

intensity


Answers (1)

best_answer

\\ \text{According to Einstein's photoelectric equation}\\ $\mathrm{K}_{\mathrm{max}}=\mathrm{hv}-\mathrm{hv}_{\mathrm{o}}$ \\ since\ $\mathrm{K}_{\max }$ \ \text{is + ve, the photoelectric emission occurs only if}\\ hv>\mathrm{hv}_{\mathrm{o}}$ or $\mathrm{v}>\mathrm{v}_{\mathrm{o}}$ \\ The photoelectric emission occurs only when the incident light has more than a certain minimum frequency. This minimum frequency is called threshold frequency.

Posted by

Devendra Khairwa

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