Jamb Physics 2022 Past Questions and Answers

Question 36:

• JAMB 2022

A person standing waist-deep in a swimming pool appears to have short legs because of light?

A. Diffraction
B. Refraction
C. Reflection
D. Interference

Question 37:

• JAMB 2022

A tuning fork having a frequency of 312 Hz emits a wave which has a wavelength of 1.10 m. Calculate the velocity of sound

A. 312.0 ms\(^{-1}\)
B. 110.0 ms\(^{-1}\)
C. 343.2 ms\(^{-1}\)
D. 686.4 ms\(^{-1}\)

Question 38:

• JAMB 2022

When the plate area of a capacitor increases?

A. The voltage can withstand increase
B. The capacitance decreases
C. The capacitance is unaffected
D. The capacitance increases

Question 39:

• JAMB 2022

A magnet relay is a device used for?

A. Reading the magnitude of magnetic flux
B. Controlling another circuit carrying larger current
C. Turning in sports
D. Storing magnetic field

Question 40:

• JAMB 2022

According to kinetic molecular model in gases,

A. The particles are closely packed together; they occupy minimum space are usually arranged in a regular pattern
B. The particles vibrate about fixed positions and are held together by the strong intermolecular bonds between them
C. The molecules are very far apart and occupy all the spaces made available to them
D. The particles occur in clusters with molecules slightly further apart