Punjab 12th Class Physics Chapter 10 Nuclear Physics Mcqs Test Online

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Question 1 of 10

Physics

1. Unit of decay constant λ is,

1.m

2.ms

3.s¹

4.m¹

Question 1 of 10

Question 2 of 10

2. Which of the following basic force is able to provide an attraction between two neutrons:

1.Electrostatic and nuclear

2.Gravitational and strong nuclear

3.Only nuclear force

4.Electrostatics and gravitational

Question 2 of 10

Question 3 of 10

3. Mass equivalent of 931 MeV energy is:

1.2.67 x 10⁻²⁷ kg

2.6.02 x 10⁻²³ kg

3.1.766 x 10⁻²⁷ kg

4.6.02 x 10 – 27kg

Question 3 of 10

Question 4 of 10

4. Bottom quark carries charge:

1.-1/3 e

2.2/3 e

3.+1/3 e

4.-2/3 e

Question 4 of 10

Question 5 of 10

5. How many neutrons are there in the nuclide Zn⁶⁶?

1.36

2.30

3.66

4.22

Question 5 of 10

Question 6 of 10

6. The radioactive nuclide ₈₆Ra²²⁸ decays by a series of emissions of three alpha particles and one beta particle. The nuclide X finally formed is,

1.₈₄X²²⁰

2.₈₈X²¹⁵

3.₈₃X²¹⁶

4.₈₆X²²²

Question 6 of 10

Question 7 of 10

7. Gammas radiations are emitted due to:

1.De-excitation of nucleus

2.Excitation of nucleus

3.De-excitation's of atom

4.Excitation of atom

Question 7 of 10

Question 8 of 10

8. A radioactive substance has a half life of four months. 3-fourth of the substance will decay in.

1.16 months

2.6 months

3.8 months

4.12 months

Question 8 of 10

Question 9 of 10

9. The energy equivalent of 1 kg of matter is about.

1.10⁻¹⁵ J

2.10⁻¹² J

3.10¹⁷ J

4.1 J

Question 9 of 10

Question 10 of 10

10. The binding energy for nucleus A is 7.7 MeV and that for nucleus B is 7.8 MeV. Which nucleus has the larger mass?

1.Nucleus A

2.Nucleus B

3.None of these

4.Less than Nucleus A

Question 10 of 10

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