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The threshold wavelength for photoelectric emission from a material is 5500 Å. Photoelectrons will be emitted, when this…

Q1

The threshold wavelength for photoelectric emission from a material is 5500 Å. Photoelectrons will be emitted, when this material is illuminated with monochromatic radiation from a
A. \(75 W\) infra-red lamp

B. \(10 W\) infra-red lamp

C. \(75 W\) ultra-violet lamp

D. \(10 W\) ultra-violet lamp

Choose the correct answer from the options given below:

[JEE Main 2023, 29 Jan (Shift I)]

a

\(
\text { B and C only }
\)

b

\(
\text { A and D only }
\)

c

\(
\text { C only }
\)

d

\(
\text { C and D only }
\)

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