General Physics Questions And Answers


Q1. 
Which of the following increases the maximum kinetic energy of the photoelectrons emitted?

Ans.
Increasing the frequency of the incident beam


Q2. 
Who is responsible for the photoelectric effect experiment?

Ans.
Heinrich Hertz


Q3. 
Identify the conclusion of the photoelectric experiment from the following.

Ans.
The energy in light comes as small packets


Q4. 
The photoelectric effect is commonly found in solar panels.

Ans.
True


Q5. 
Find the odd one out.

Ans.
Sodium


Q6. 
The energy of characteristic X-ray is a consequence of which of the following?

Ans.
Transition in target atoms


Q7. 
Which of the following is true regarding the Bohr model of atoms?

Ans.
Assumes that the angular momentum of electrons is quantized


Q8. 
When a hydrogen atom is in its first excited level, what is the relation of radius and Bohr radius?

Ans.
4 times


Q9. 
What causes spectral lines?

Ans.
The transition of electrons between two energy levels


Q10. 
How many spectral lines are there in the hydrogen spectrum?

Ans.
Multiple