On changing target material, the graph in adjoining diagram…

Physics Electron, Photon, Photoelectric Effect and X-rays Photon and Photoelectric Effect MCQ (Single Correct)

On changing target material, the graph in adjoining diagrams shows

Different intercept but same slope

Same intercept but different slopes

Same intercept and same slope

Both the intercept and slopes different

Text Solution

Verified by Experts

The correct answer is:

In the photoelectric effect, the graph of stopping potential vs frequency has:

Slope , which is the same for all materials.

Intercept , which depends on the work function , so it changes with material.

Therefore, on changing the target material:
Intercept changes (because work function changes)
Slope remains the same (because h/e is constant)

Get practice questions, solutions, and test series in one place.

Share your experience with this question and solution.

Send your comment, doubt, correction, or feedback to admin.

What students say about this solution

No reviews yet. Be the first to write a review.