Waves - Jamb Physics Past Questions and Answers

Question 76:

• JAMB 2009

If a light wave has a wavelength of 500nm in air what is the frequency of the wave?
[c = 3 x 10⁸ ms^-1]

A. 3.0 x 10¹⁴ Hz
B. 6.0 x 10¹⁴ Hz
C. 6.0 x 10¹² Hz
D. 2.5 x 10¹⁴ Hz

Question 77:

• JAMB 2009

A progressive wave is represented by \( y = 10 \text{Sin} (1000\pi t - \frac{\pi x}{34}) \) . two layers of the wave separated by 153cm have a phase difference of

A. 270⁰
B. 45⁰
C. 90⁰
D. 180⁰
E. No Correct Option

Question 78:

• JAMB 2010

The wavelength of a wave traveling with a velocity of 420 ms^-1 is 42 m. what is its period?

A. 1.2 s
B. 1.0 s
C. 0.5 s
D. 0.1 s

Question 79:

• JAMB 2010

During a thunderstorm, the sound is heard over a long time. this phenomenon is referred to as

A. Diffraction of sound
B. Refraction of sound
C. Superposition
D. Reveraberation

Question 80:

• JAMB 2010

The wavelength of a wave traveling with a velocity of 420 ms^-1 is 42 m. what is its period?

A. 1.2 s
B. 1.0 s
C. 0.5 s
D. 0.1 s