Question

01. -------------------- the unit of frequency.
A meter
B hertz
C decibel
D
centimeter

Description :
02. The distance between two compression and rarefactions are called as ------.
A Frequency
B time
C wavelength
D
speed
Description :
03.
sound waves does not travel in -----------.

A solid
B vacuum
C liquid
D
gas

Description :
04. Which of the following represents the speed of a sound wave
A wavelength x frequency
B 2x wavelength x frequency
C wavelength/ frequency
D
(wavelength x frequency)/2

Description :
05.
Children under the age of 5can hear upto -------------.

A 20Hz
B 20kHz
C 25Hz
D 25kHz
Description :
06. To and fro motion of an object is called ---------------.
A vibration
B amplitude
C waves
D all the above
Description :
07. The time taken to complete one oscillation is called ----------------.
A time period
B velocity
C frequency
D
wavelength

Description :
08. Propagation of wave transfers ----------------.
A energy only
B matter only
C both energy and matter
D none of these
Description :
09.
A sound of single frequency -------------.

A tone
B note
C pitch
D
amplitude

Description :
10. sound is a ---------------.
A form of power
B form of energy
C form of transverse wave
D
form of longitudinal wave

Description :
11.
The hearing range of human ear is -------------.

A 20 Hz to 20,000Hz
B less than 20 Hz
C more than 20,000 Hz
D 20Hz to 25,000Hz
Description :
12. In longitudinal waves, the particles vibrate in a ---------------- direction of propagation
A parallel
B perpendicular
C curved
D both parallel and perpendicular
Description :
13. What type of waves are sound waves
A latitudinal waves
B longitudinal waves
C transverse wave
D
latitudinal mechanical wave

Description :
14. sound passes from one place to another in form of -----------.
A rays
B waves
C energy
D
light

Description :
15. The upper portion of sound wave curve --------
A trough
B crest
C pitch
D
amplitude

Description :
16. sound is produce due to
A friction
B rarefaction
C compression
D
vibration

Description :
17.
The pitch of sound depends on ------------------.

A frequency
B amplitude
C both of these
D
none of these

Description :
18. Ultrasonic sound waves are ------------.
A below 20Hz
B above 20kHz
C equal to 20Hz
D above 20Hz
Description :
19. In which medium sound travels is most
A solid
B liquid
C gas
D
vacuum

Description :
20. Large amplitude of sound vibrations will produce ------------.
A loud sound
B meak sound
C slow sound
D
shreak
​

Answer 1

Answer:

1.hertz 2. wavelength 3.vaccum 6. vibration7.oscillation

Answer 2

Answer:

hertz

3.vaccum

6.amplitude

9. tone

10.form of energy

13.latitudinal mechanical wave

14.waves

15. crest

17.both of these

18 below 20HZ

20.loud sound