JEE CHEMISTRY MCQ: STRUCTURE OF ATOM

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When a certain metal was irradiated with light of frequency

4.0 \times 10^{16} \mathrm{~s}^{-1}

, the photoelectrons emitted has three times the kinetic energy as the kinetic energy of photoelectrons emitted when the metal was irradiated with light of frequency

2.0 \times 10^{16} \mathrm{~s}^{-1}

Calculate the critical frequency

\left(v_0\right)

of the metal.

View answer and explanation

Correct option: B

1 \times 10^{16} \mathrm{~s}^{-1}

Option B (

1 \times 10^{16} \mathrm{~s}^{-1}

) is correct because it is the critical frequency calculated using Einstein's photoelectric equation and the given conditions.

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