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Modern Physics Test 2 Online MCQs

Test Name Modern Physics Test 2
Subject Physics
Test Type MCQs
Total Question 15
Total Marks 30
Total Time 15 Mints
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Get the knowledge of Modern Physics in the form of multiple choice questions Test for the recruitment test, all admission test, mock quiz, MCAT and engineering test preparation.

Modern Physics Test 2 Online MCQs


1. Which of the following characteristics of photoelectric effect supports the particle nature of radiations.


Question 1 of 15

2. The graph between, which of the following two factors for photoelectric effect, is a straight line?


Question 2 of 15

3. The energy difference between the first two levels of hydrogen atom is 10.2 eV. For another element of atomic number 10 and mass number 20, this will be


Question 3 of 15

4. The maximum energy of the electrons released in photocell is independent of


Question 4 of 15

5. Photoelectrons are being obtained by irradiating zinc by a radiation of 3100 Å. In order to increase the kinetic energy of ejected photoelectrons


Question 5 of 15

6. The momentum of the photon is given by


Question 6 of 15

7. A photon stimulates the emission of another photon of the same energy. The two are


Question 7 of 15

8. In photoelectric effect, the photoelectric current

Question 8 of 15

9. Photo electric effect supports the quantum nature of light because

Question 9 of 15

10. Which of the following is not property of the photons?


Question 10 of 15

11. Blue light can cause photoelectric emission from a metal, but yellow light cannot. If red light is incident on the metal, then


Question 11 of 15

12. The frequency and intensity of the incident beam of light falling on the surface of photoelectric material is increased by a factor of two. This will


Question 12 of 15

13. Which one of the following is incorrect statement about a photon?

Question 13 of 15

14. A photosensitive material would emit electrons if excited by photons beyond a threshold. To cross the threshold you would increase


Question 14 of 15

15. A metallic surface has a threshold wavelength 5200 Å. This surface is irradiated by monochromatic light of wavelength 4500 Å. Which of the following statements is true?

Question 15 of 15


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