The number of vibrations per second is called:
Correct answer: B. Frequency
- A. Time period:
- B. Frequency
- C. Velocity:
- D. Distance:
Explanation
Explanation: The number of vibrations or oscillations per second is called frequency. It is measured in hertz (Hz). The inverse of frequency is the time period (a), which is the time taken for one complete cycle of the vibration.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Waves
Progressive waves transfer energy through oscillations, with wavelength, frequency, amplitude and wave speed related by v = fλ; sound speed depends on the medium. Superposition produces interference and stationary waves in strings and organ pipes, while simple harmonic motion describes the oscillation itself and must be distinguished from wave propagation.
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 Waves questions
How does the speed of sound in air depend on atmospheric pressure P?
The length of a meter rod moving with a velocity equal to 3×10^8 m/s appears to an observer at rest as
Matter waves are
When sound waves move from one medium to another medium the quantity which remains unchanged is:
A source of sound and a listener are both moving in the same direction, the source following the listener. If the respective velocities of sound, source, and listener are vr, vs , and vl , then the ratio of the actual frequency of the source and the apparent frequency as received by the listener is:
Due to the overlapping of two identical waves, the speed of the resultant wave: