Home / Aptitude Tests / Physics / A plane sound wave o...
A plane sound wave of frequency 85.5Hz and velocity 342ms

A plane sound wave of frequency 85.5Hz and velocity 342ms-1 is reflected from a vertical wall. At what distance from the wall does the wave have antinode?

A.

2m

B.

4m

C.

1m

D.

3m

View answer & explanation

Correct answer is C

If F = 85.5Hz, V = 342ms-1,
Then wavelength = V/F = 342/85.5 = 4m

Then if wavelength = 4m
=> wavelength/2 = 4/2 = 2m = NN,
Thus NA = wavelength/4 = 4/4 = 1m.

See all Physics questions & answers
See more JAMB questions & answers
Similar Questions

Railway tracks are banked on curves ...

A certain wave has a speed of 20ms-1. If the frequency of the wave is 0.25Hz, calculate the distance...

The angle of incidence of a ray of light on a plane mirror is 55o. Determine the angle between the r...

The velocity ratio of an inclined plane ...

The diagram above illustrates the energy transitions of five electrons of an atom. Which of the tran...

The inner diameter of a test tube can be measured accurately using a? ...

I. Moon. II. Sun. III.street light. IV. stars. Which of these are natural sources of l...

A body whose mass is 2kg and has a volume of 500cm3 just floats when completely immersed in a liquid...

What effort will a machine of efficiency 90% apply to a load of 180N if its efforts arm is twice as ...

When two cells of negligible internal resistances and equal e.m.f. denoted by E\(_1\) and E\(_2...

Aptitude Tests

Microsoft Office Questions and Answers

Numerical Reasoning Questions and Answers

Personality Test

Puzzles Questions and Answers

Data Interpretation Questions and Answers

Nigeria General Knowledge Questions and Answers

Quantitative Reasoning Questions and Answers

Logical Reasoning Questions and Answers

Abstract Reasoning Questions and Answers

Situational Judgement Questions and Answers

Verbal Reasoning Questions and Answers

Typing Speed and Accuracy Test

Spatial Reasoning Questions and Answers

See all →