Rankers Physics

Photoelectric Effects and deBroglie Equation: Practice Problem & Solution

Number of ejected photoelectrons increases with increase (1993)
In intensity of light
In wavelength of light
In frequency of light
Never

Solution Explained:

To solve this problem, we apply the core principles of Photoelectric Effects and deBroglie Equation. Understanding the underlying formula is key to arriving at the correct answer below:

The number of photoelectrons ejected per second from a photosensitive surface is directly proportional to the intensity of the incident light, assuming the frequency is above the threshold.

Leave a Reply

Your email address will not be published. Required fields are marked *

Similar Practice Questions

Explore conceptually related problems to test your knowledge.

1. Assertion (A): If the accelerating potential in an X-ray tube is increased, the wavelength of the characteristic X-rays does not change. Reason (R): When an electron beam strikes the target in an X-ray tube, part of the kinetic energy is converted into X-ray energy.  
2. The binding energy per nucleon is maximum in case of (1993)
3. An electron in a hydrogen atom makes a transition from \(n = n_1\) to \(n = n_2\). The time period of revolution of the electron in the initial state is eight times that in final state. The possible value of \(n_1\) and \(n_2\) are
4. The figure shows the variation of photo current with anode potential for a photo-sensitive surface for three different radiations. Let Ia, Ib, and Ic be the intensities and fa, fb and fc be the frequencies for the curves a, b and c respectively :
5. The speed of photons of radiation having wavelength \(\lambda\), in vacuum is proportional to