MCQ- 3 ICSE Physics class 10 ch-6 Modern Physics

Alpha, Beta, and Gamma Radiations - Class 10 Physics

1. What is emitted during Alpha decay?

Electron
Proton
Helium nucleus
Neutron

Correct Answer: Helium nucleus

2. Which radiation has the highest penetrating power?

Alpha radiation
Beta radiation
Gamma radiation
Neutron radiation

Correct Answer: Gamma radiation

3. During Beta decay, what particle is emitted?

Proton
Electron
Neutron
Helium nucleus

Correct Answer: Electron

4. Which of the following is NOT a property of Alpha particles?

Positively charged
Low penetration
Heavy and slow
Highly penetrating

Correct Answer: Highly penetrating

5. What happens to the atomic number of an element during Alpha decay?

Decreases by 2
Increases by 1
Remains unchanged
Increases by 2

Correct Answer: Decreases by 2