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Modern Physics - Nuclear Physics - SS2 Physics Past Questions and Answers - page 1

1

Which of the following is NOT a type of nuclear decay?

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A

Alpha decay

 

B

Beta decay

 

C

Gamma decay

 

D

Electron capture

2

What is the primary mode of radioactive decay for heavy nuclei?

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A

Alpha decay

 

 

B

Beta decay

 

C

Gamma decay

 

D

Electron capture

3

Which type of radiation has the highest penetrating power?

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A

Alpha particles

 

B

Beta particles

 

 

C

Gamma rays

 

D

Neutrons

4

Which of the following isotopes is commonly used in carbon dating?

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A

Carbon-12

 

B

Carbon-13

 

C

Carbon-14

 

D

Carbon-15

5

Which decay process involves the emission of a positron?

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A

Alpha decay

 

B

Beta decay

 

C

Gamma decay

 

D

Electron capture

6

The half-life of a radioactive substance is defined as:

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A

The time it takes for half of the radioactive atoms to decay

 

 

B

The time it takes for all of the radioactive atoms to decay

 

C

The time it takes for the radioactive substance to become stable

 

D

The time it takes for the radioactive substance to emit gamma rays

7

Which of the following is a product of alpha decay?

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A

A helium nucleus

 

B

An electron

 

 

C

A neutron

 

D

A proton

8

Which of the following particles has the same mass as an electron but carries a positive charge?

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A

Alpha particle

 

 

B

Beta particle

 

C

Proton

 

D

Neutron

9
Which of the following is NOT a safety precaution when working with radioactive materials?
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A
Wearing protective clothing
B
Using shielding materials
C
Storing radioactive materials in a sealed container
D
Eating and drinking in the lab
10

Which of the following statements is true about nuclear fission?

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A

It involves the combination of two atomic nuclei to form a larger nucleus.

 

B

It releases energy by splitting heavy atomic nuclei into smaller fragments.

 

C

It is a natural process that occurs spontaneously in all atoms.

 

D

It does not release any radiation.