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Threshold wavelength for lithium metal i...

Threshold wavelength for lithium metal is 6250 Å wavelength of incident radiation required for photoelectric emission will be……

A

more than 6250 Å

B

equal to or greater than 6250Å

C

6250 Å

D

equal to or less than 6250 Å

Text Solution

Verified by Experts

The correct Answer is:
D
Condition for emission of photo electron.
`fgef_(0) therefore (c )/(lambda)ge (C )/(lambda_(0)) therefore lambda_(0) ge lambda`
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