Jamb Physics 2023 Past Questions and Answers

Question 11:

• JAMB 2023

The working of the beam balance is based on the principle of

A. Moments
B. Conservation of energy
C. Equivalence
D. Floatation

Question 12:

• JAMB 2023

Which of the following is a type of incandescent light source?

A. Fluorescent lamp
B. LED lamp
C. Tungsten filament lamp
D. Neon lamp

Question 13:

• JAMB 2023

From the diagram above, if the potential difference across the resistor, capacitor and inductor are 60V, 120V and 30V respectively, the effective potential difference is

A. 81
B. 67
C. 59
D. 73

Question 14:

• JAMB 2023

When light of a certain frequency is incident on a metal surface, no photoelectrons are emitted. If the frequency of the light is increased, what happens to the stopping potential?

A. The stopping potential does not change.
B. The stopping potential decreases.
C. The stopping potential can either increase or decrease, depending on the intensity of the light.
D. The stopping potential increases.

Question 15:

• JAMB 2023

Which of the following is NOT a limitation of experimental measurements?

A. Systematic error
B. Instrument resolution
C. Random errors
D. Human error