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A metallic surface ejects electrons when...

A metallic surface ejects electrons when exposed to green light of intensity I but not when exposed to yellow light of intensity I. It is possible to eject electrons from the same surface by
(i) yellow light of some intensity which is more than I
(ii) green light of any intensity
(iii) red light of any intensity
(iv) violet light of any intensity

A

Yellow light of same intensity which is more than I

B

Green light of any intensity

C

Red light of any intensity

D

None of the above

Text Solution

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The correct Answer is:
B
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