The necessity for a material medium - Jamb Physics Past Questions and Answers

Question 1:

• JAMB 2019

If the time of flight is 96seconds, calculate the horizontal range through the point of projection.

A. 84400m
B. 69000m
C. 61440m
D. 24000m

Question 2:

• JAMB 1979

Which of the following types of waves cannot travel through a vacuum?

A. Sound waves
B. Light waves
C. Infra-red waves
D. X-radiation
E. Redio waves

Question 3:

• JAMB 1985

When a sound wave passes from air into water its

A. Speed and frequency increases but its wavelength remains the same
B. Speed and wavelength increases but its frequency remains the same
C. Speed decreases
D. Speed remains the same but its frequency and wavelength change
E. Speed increases but its frequency and wavelength decreases

Question 4:

• JAMB 1988

Which of the following media allow the transmission of sound wave through them i. Air. ii. Liquids. iii. Solids.

A. I and ii only
B. I and iii only
C. Ii and iii only
D. I,ii and iii

Question 5:

• JAMB 2010

The sound of an electricity bell dies down slowly when air is slowly pumped out from a bottle because

A. The wavelength of sound becomes greater in the bottle
B. Sound cannot pass through the bottle
C. Sound needs a material medium
D. Sound can pass through a vacuum