If light with photon energy 2eV is incident suitably on the surface of a metal with work function 3eV, then - SchoolNGR

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If light with photon energy 2eV is incident suitably on the surface of a metal with ...

If light with photon energy 2eV is incident suitably on the surface of a metal with work function 3eV, then

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Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE

A No electron will be emitted
B The few electrons emitted will have a maximum kinetic energy of 1eV
C The few electrons emitted will have a maximum kinetic energy of 3eV
D Many electrons will be emitted

Correct Answer: Option A

Explanation:
An electron can only be emitted if photon energy is equal or greater than work function of the plate

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