Home / Tests / Atoms Molecules Nuclei Electrons Photons Test Online

Atoms Molecules Nuclei Electrons Photons Test Online

Test Name Atoms, Molecules, Nuclei, Electrons & Photons Test
Subject Physics
Test Type MCQs
Total Question 15
Total Marks 30
Total Time 15 Mints
Test Help For
  • Physics Subject Test Prep.
  • All Admissions Test.
  • All Jobs Test prep.
  • Medical Test prep.
  • Engineering Test prep.

Get online test of physics subject over here. Attempt multiple choice questions about Atoms Molecules Nuclei Electrons Photons below prepare for the admission tests and mock quiz.

Atoms Molecules Nuclei Electrons Photons Test Online

Physics

1. Which one of the following is used as a moderator in nuclear reaction?

 

Question 1 of 15

2. In the nuclear reaction, there is a conservation of:

 

Question 2 of 15

3. When radioactive substance emits an α-particle, then its position in the periodic table is lowered by:

 

Question 3 of 15

4. The radius of hydrogen atom in the first excited level is:

 

Question 4 of 15

5. A radioactive substance decays to 1/16th of its initial activity in 40 days. The half-life of the radioactive substance expressed in days is

 

Question 5 of 15

6. The surface of zone material is radiated in turn by waves of λ = 350 nm and 540 nm respectively. The ratio of the stopping potential in the two cases is 2:1. The work function of the material is

 

Question 6 of 15

7. A proton is about 1840 times heavier than an electron. When it is accelerated by a potential difference of 1 kV, its kinetic energy will be

 

Question 7 of 15

8. The reaction responsible for the production of light energy from the sun will be:

 

Question 8 of 15

9. In each fission of ₉₂U²³⁵ releases 200 MeV, how many fission's must occur per second to produce power of 1 kW?

 

Question 9 of 15

10. In ₈₈Ra²²⁶ nucleus there are:

 

Question 10 of 15

11. If the radioactive decay constant of radium is 1.07 x 10⁻⁴ per year. Then its half life period approximately is equal to:

 

Question 11 of 15

12. Particle nature and wave nature of electromagnetic waves and electrons can be represented by:

 

Question 12 of 15

13. The activity of a radioactive sample is 1.6 curie and its half life is 2.5 days. Then activity after 10 days will be:

 

Question 13 of 15

14. When cathode rays strike a metal target of high melting point with a very high velocity then which of the following are produced ?

 

Question 14 of 15

15. In an atom bomb, the energy is released because of the:

 

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 *