CHETANA PUBLICATION-Study of Sound-EXERCISE
- Match the columns:
Text Solution
|
- The unit of frequency is …………… .
Text Solution
|
- The normal hearing range for humans is ………… .
Text Solution
|
- Sound will not travel through ……….. .
Text Solution
|
- SI unit of …………..is Hertz (Hz).
Text Solution
|
- The velocity of sound is inversely proportional to the………… .
Text Solution
|
- Sound waves with frequency greater than 20 kHz are called……….. .
Text Solution
|
- The loudness of a sound depends upon ………… .
Text Solution
|
- …../… are used in sonography.
Text Solution
|
- The ……….receives the vibrations coming from the membrane and converts ...
Text Solution
|
- Sound will not travel through ……….. .
Text Solution
|
- SI unit of …………..is Hertz (Hz).
Text Solution
|
- The loudness of a sound depends upon ………… .
Text Solution
|
- …………are used in sonography.
Text Solution
|
- Match the columns:
Text Solution
|
- The intensity of reverberation is higher in a closed and empty house.
Text Solution
|
- Bats can navigate in dark.
Text Solution
|
- Sound travels faster in iron than in air.
Text Solution
|
- The roof of a movie theatre and a conference hall is curved. Why?
Text Solution
|
- The intensity of reverberation is higher in a closed and empty house.
Text Solution
|
- What is an echo? What factors are important to get a distinct echo?
Text Solution
|