Which of the following statements about the speed of waves on a string is/ are TRUE?I. The speed depends on the frequency.II. The speed depends on the tension in the string.III. The speed depends on the mass per unit length of the string.
Correct answer: B. II only
- A. I only
- B. II only
- C. I and III
- D. II and III
Explanation
The speed of a wave on a string is given by the equation v = √(T/μ), where v is the speed, T is the tension in the string, and μ is the mass per unit length of the string. Therefore, the speed depends on the tension and the mass per unit length, but not on the frequency. Hence, option II only is the correct answer. Options I and III incorrectly state that frequency affects speed, which it does not.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Wave Speed
Wave speed is the rate at which a disturbance or wave pattern travels through a medium, given by v = fλ, where f is frequency and λ is wavelength. Questions examine how speed changes between media, the relation among frequency, wavelength and period, and why wave speed is not the same as particle vibration speed.
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 Wave Speed questions
If 20 sound waves pass throw a Point in a medium in 2 s with the velocity of 20 m/s, then the wavelength will be
If 20 sound waves pass from a point of a medium in 2 s with the velocity of 20 m/s, then the wavelength is
Doppler effect applies to____________________?
The distance between two consecutive antinodes of an incident wave is 1 m. If the frequency of the wave is 25 Hz, then the velocity of the wave will be
What is the wavelength if the distance between a crest and immediate trough in a transverse wave is 15 m?
Frequency of a travelling wave is 2000 Hz. Its speed is 300m/s. What is its wavelength?