Sound

Question 1

Which of the following creatures
use ultrasonic sound to catch their prey?

Answer 1

Bats

Question 2

Sound cannot travel through______.

Answer 2

Vaccum

Question 3

The audible range of sound for human beings is from:

Answer 3

20 Hz to 20 kHz

Question 4

The audible range of sound for an average adult human being is ______.

Answer 4

20 Hz - 20000 Hz

Question 5

When speed of an object exceeds the velocity of sound, Then it is said to be moving with ______ speed.

Answer 5

Supersonic speed

Question 6

What is the velocity of sound in air?

Answer 6

343 m/sec

Question 7

What is the approximate speed of sound in distilled water at 25°C (77°F)?

Answer 7

1498 m/s

Question 8

What is the approximate speed of sound in distilled water at 25°C (77°F)?

Answer 8

1498m/s

Question 9

In which medium does sound travel faster?

Answer 9

Solid

Question 10

Bats search out prey and fly in dark night by emitting and detecting reflections of which type of Sound waves?

Answer 10

Ultrasonic waves

Question 11

Which of the following characteristics of sound is measured in hertz (Hz)?

Answer 11

Frequency of the sound

Question 12

If an object executes 10 oscillations per second, then its frequency in kilohertz is equal to:

Answer 12

0.01

Question 13

Vibration of which among the following produces only odd harmonics?

Answer 13

An air column in a closed organ pipe