Target Exam

CUET

Subject

Physics

Chapter

Dual Nature of Radiation and Matter

Question:

In the systematic study of the photoelectric effect experiment, the stopping potential depends (for a given metal)

Options:

Intensity of the incident light (radiation)

amplitude of the incident light (radiation)

Frequency of the incident light (radiation)

Exposure time of the incident light (radiation)

Correct Answer:

Frequency of the incident light (radiation)

Explanation:

The correct answer is Option (3) → Frequency of the incident light (radiation)

According to Photoelectric equation:-

$eV_s=hv-\phi$

where,

$V_s$ = Stopping potential

$v$ = frequency of incident light