What is the relationship between the intensity 'I' and the amplitude 'a' of a wave?
Correct answer: B. I/a2 = constant
- A. I a = constant
- B. I/a2 = constant
- C. I a2 = constant
- D. I/a = constant
Explanation
The correct relationship between the intensity 'I' and the amplitude 'a' of a wave is option D: l/a2 = constant.
This question appeared on the ETEA MDCAT 2014 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Progressive Waves
Progressive waves transfer energy through a medium or space while particles oscillate about their equilibrium positions. The work includes amplitude, wavelength, frequency, period, phase difference, wave speed and the progressive wave equation, while distinguishing travelling waves from stationary waves, where the pattern has fixed nodes and antinodes.
Practise Waves
1,281 free Waves MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Progressive Waves questions
Of the following properties of a wave, the one that is independent of the others is its:
A sound wave of frequency 400 Hz is travelling in a gas at a speed of 320 ms-1. What is the phase difference between two points 0.2 m apart in the direction of the travel?
The intensity of a wave is:
Read the statement carefully and choose the correct option.
Sound waves cannot be: