Monochromatic radiation is emitted when the electron in hydrogen atom – InterviewSolution

1.	Monochromatic radiation is emitted when the electron in hydrogen atom jumps from the first excited state to the ground state. It is incident on a photosensitive material. The stopping potential is measured to be 3.57 V. The threshold frequency of the material is
Answer» Monochromatic radiation is emitted when the electron in hydrogen atom jumps from the first excited state to the ground state. It is incident on a photosensitive material. The stopping potential is measured to be $3.57$ $V$ . The threshold frequency of the material is

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