Advertisements
Advertisements
प्रश्न
Select the correct option:
In the region of compression or rarefaction, in a longitudinal wave, the physical quantity which does not change is:
विकल्प
pressure
mass
density
volume
Advertisements
उत्तर
mass
APPEARS IN
संबंधित प्रश्न
What are ultrasonics? Can you hear the ultrasonic sound?
Which of the following can produce longitudinal waves as well as transverse waves under different conditions?
Match the pairs.
| Group ‘A’ | Group ‘B’ |
| (a) Flute | (1) Frequency less than 20 Hz |
| (b) Frequency | (2) Frequency more than 20000 Hz |
| (c) Sound level | (3) Vibrations in the air |
| (d) Ultrasonic sound | (4) Measured in Hz |
| (e) Infrasonic sound | (5) Decibel |
From diagram given below calculate:
- velocity of P and Q
- frequency of P, when frequency of Q is 512 Hz.
Assume that both wave are traveling in same medium.
How does the speed of sound depend on (i) Amplitude, and (ii) Wavelength?
The sound of which of the following frequency is audible to us?
2 Hz, 1000 Hz, 200 kHz, 8 MHz
Explain how the principle of echo is used by
The dolphin to locate small fish as its prey.
What type of sound is produced by elephants and whales?
Describe with diagram, how compressions and rarefactions are produced.
Name two musical instruments which produce sound by vibrating strings.
