CBSE Physics Electrons And Photons Test 2 Online
Home / Tests / CBSE Physics Electrons and Photons Test 2 Online

CBSE Physics Electrons and Photons Test 2 Online

Test Name Electrons and Photons Test
Subject CBSE Physics
Test Type MCQs
Total Question 25
Total Marks 50
Total Time 20 Minutes
Test Help For
  • CBSE Physics.
  • CBSE Board Exams.
  • Entrance Exams.
  • Admissions Test.
  • Jobs Test.
  • General Knowledge.
  • All Grades Exams.

Central Board of Secondary Education, CBSE is a Board of Education for public and private schools all India and they are responsible all subjects. Science subject Physics read and guide in all classes on regular basis. Our topics is Electrons and Photons from upper classes syllabus for preparation online. All students get most helpful questions answers test to take online and get some important rank score in examinations results.

CBSE Physics Electrons and Photons Test 2 Online

CBSE

1. mark reviewWhich of the following is not the property of cathode rays ?

Question 1 of 15

2. mark reviewA photosensitive metallic surface has work function, h v0. If photons of energy 2hvo fall on this surface, the electrons come out with a maximum velocity of 4 x 106 m/s. When the photon energy is increased to 5hvo, then maximum velocity of photoelectrons will be ?

Question 2 of 15

3. mark reviewA 5 W source emits monochromatic light of wavelength 5000 A. When placed 0.5 m away, it liberates photoelectrons from a photosensitive metallic surface. When the source is moved to a distance of 1.0 m, the number of photoelectrons liberated will be reduced by a factor of ?

Question 3 of 15

4. mark reviewIn the phenomenon of electric discharge through gases at low pressure, the coloured glow in the tube appears as a result of ?

Question 4 of 15

5. mark reviewIn a mas spectrometer used for measuring the masses of ions, the ions are initially accelerated by an electric potential V and then made to describe semicircular paths of radius R  using a magnetic field B. If V and B are kept constant, the ratio [charge on the ion/mass of the ion] will be proportional too ?

Question 5 of 15

6. mark reviewThe following particles are moving with the same velocity, then maximum de-Broglie wavelength will be for ?

Question 6 of 15

7. mark reviewAn electron moves with a velocity 1 x 103 m/s in a magnetic field of induction 0.3 T at an angle 30°. If e/m of electron is 1.76 x 1011 C/Kg, the radius of teh path is nearly ?

Question 7 of 15

8. mark reviewMonochromatic light of wavelength 667 nm is produced by a helium neon laser. the power emitted is 9 mW. The number of photons arriving per second on the average at a target irradiated by  this beam is ?

Question 8 of 15

9. mark reviewIn a photosensitive cell, with exciting wavelength λ the fastest electron has speed v. If the existing wavelength is changed to 3λ/4, the speed of the fastest emitted electron will be ?

Question 9 of 15

10. mark reviewA photocell employs photoelectric effect to convert ?

Question 10 of 15

11. mark reviewA particle of mass 1 mg has the same wavelength as an electron moving with a velocity of 3 x 106 mas-1. The velocity of the particle is (mass of electron = 9.1 x 10-31 kg) ?

Question 11 of 15

12. mark reviewIn a discharge tube ionisation of enclosed gas is produced due to collisions between ?

Question 12 of 15

13. mark reviewMonochromatic light of frequency of 6.0 x 1014 Hz is produced by a laser. The power emitted is 2 x 10-3 W. The number of photons emitted, on the average, by the source per second is ?

Question 13 of 15

14. mark reviewwhen ultraviolet rays are incident on metal plate, the photoelectric effect does not occur. It occurs by incidence of ?

Question 14 of 15

15. mark reviewIn X-rays diffraction experiment distance between atomic lattice planes of diffraction grating is 2.8 x 10-10m then the maximum wavelength of X-rays (in metre) is ?

Question 15 of 15


 

Test By Subject
Test By Topics
Have any Problem or Error please mention in below comments section.

Leave a Reply

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