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A metal surface ejects electrons when hi...

A metal surface ejects electrons when hit by green light but none when hit by yellow light. The electrons will be ejected when the surface is hit by

A

yes

B

No

C

Yes, if the red bream is quite intense

D

Yes, if the red beam continues to fall upon

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The correct Answer is:
B
Red light has less frequency than green. So, it will not cause ejection of electrons
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