Prime factorisation

Q.

Why cant the photoelectric effect be explained by the wave model?

Q.

Which of the following predictions of the classical wave model of light (Maxwell's EM theory) were contradicted by the observations during the photoelectric effect experiment?

1. Increasing the intensity will increase the photocurrent.

2. For a moderate to high intensity, there will be some photocurrent no matter what the frequency is.

3. Increasing intensity of light while keeping the frequency constant will result in a higher (more negative) stopping potential.

4. Keeping the intensity fixed, changing the frequency should not affect the stopping potential at all.

Q.

Stopping potential depend on the frequency of light, as per the wave model of light?

1. Yes

2. No

Q.

The wave theory of light predicted that the stopping potential for a conductor in photoelectric effect, ______________ on increasing the frequency of light. Intensity is kept constant.

1. Increases

2. decreases

3. Remains Same

4. I don't remember learning this part

Q.

Four students were doing the photoelectric experiment with lights having different wavelengths and intensities.

$\begin{array}{ccc}Name& Wavelength\left(nm\right)& intensity\left(w/m^2\right)\\ RAM& 263& 20\\ SATRA& 544& 120\\ AVINASH& 674& 120\\ HIMANSHU& 372& 65\end{array}$

If these four students are strong supporters of the classical wave model of light, then whose experiment will supposedly need the highest stopping potential?

1. Ram

2. Satra

3. Avinash

4. Himanshu