1. Tardigrade
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  3. Chemistry
  4. Assertion: 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. Reason: The electrons in the first metal require less energy for ejection.

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Q. Assertion: 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.
Reason: The electrons in the first metal require less energy for ejection.

AIIMSAIIMS 1996Classification of Elements and Periodicity in Properties

Solution:

Ionisation of first electron requires lesser energy as compared to the second electron ionisation.