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Chemistry · Structure of atom

हिन्दी

Given below are two statements: Statement I: The energy of a quantum of radiation is proportional to its frequency. Statement II: The photoelectric emission of electrons from a metal surface shows a time lag after the light beam strikes the surface. In the light of the above statements, choose the most appropriate answer from the options given below:

  1. Both Statement I and Statement II are correct.
  2. Both Statement I and Statement II are incorrect.
  3. Statement I is correct but Statement II is incorrect.
  4. Statement I is incorrect but Statement II is correct.

Correct answer · Option 3

Statement I is correct but Statement II is incorrect.

Explanation

Statement I is correct (\( E = h\nu \)). Statement II is incorrect because photoelectron emission is instantaneous with zero time lag.
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