General Physics Questions And Answers


Q1. 
The magnetic moment of a revolving electron around the nucleus varies with the principal quantum number as which of the following?

Ans.
μ ∝ n


Q2. 
When a radioactive substance emits an α-particle, its position in the periodic table is lowered by which of the following?

Ans.
Two places


Q3. 
β-rays emitted from radioactive material are known as electromagnetic radiation.

Ans.
False


Q4. 
Which is a non-central force?

Ans.
Nuclear force


Q5. 
Who measured the size of the nucleus first?

Ans.
Rutherford


Q6. 
Which of the following is an essential requirement for initiating the fusion reaction?

Ans.
High temperature


Q7. 
What is the reaction responsible for the production of light energy from the sun?

Ans.
Fusion


Q8. 
In a nuclear reaction, there is the conservation of which of the following?

Ans.
Mass, energy, and momentum


Q9. 
Nuclear fusion is possible in which of the following cases?

Ans.
Only between light nuclei


Q10. 
Solar energy is mainly caused due to fission of uranium present in the sun.

Ans.
False