Statement-I: Electrons are ejected from a certain metal when either blue or violet light strikes the metal surface. However, only violet light causes electron ejection from a second metal.Statement-II: The electrons in the first metal required less energy for ejection.
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a
Both Statement-I and Statement-II are correct
b
Statement-I is correct and Statement-II is incorrect
c
Statement-I is incorrect and Statement-II is correct
d
Both statement-I and Statement-II are incorrect
answer is A.
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Detailed Solution
Apply E=hv, violet color is with minimum wave length and maximum energy in white light
Statement-I: Electrons are ejected from a certain metal when either blue or violet light strikes the metal surface. However, only violet light causes electron ejection from a second metal.Statement-II: The electrons in the first metal required less energy for ejection.