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Tests
Name:
PhotoElectric Effect 2
Created By:
V. Gokal
Max Time:
2 mins
Select an option for each question and click Submit
1. Which one of the following is most likely to eject electrons from a metal?
red light
blue light
green light
yellow light
2. To eject electrons from the surface of a given metal, the incident radiation must have a certain minimum :
intensity
amplitude
speed
frequency
3. Which of the following cannot be explained in terms of the wave nature of light?
photoelectric effect
interference of light
polarisation of light
diffraction of light
4. A light L is shone onto a photocell, and electrons are ejected creating a small current. To increase the current, what must be done to the light?
increase its brightness
decrease its brightness
increase the frequency
decrease the frequency
5. The kinetic energy of a photoelectron from the action of blue light will always be … the energy of the photon of blue light.
equal to
greater than
lesser than
zero compared to
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