UV radiation of 6.2 eV falls on aluminiu

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Target Exam

CUET

Subject

Physics

Chapter

Communication

Question:

UV radiation of 6.2 eV falls on aluminium surface of work function 4.2 eV. The stopping potential for the surface is:

Options:

10.4 V

2 V

1.5 V

4.2 V

Correct Answer:

2 V

Explanation:

The correct answer is Option (2) → 2 V