HARD
Earn 100

Which is an example of a mechanical wave?

45.45% studentsanswered this correctly

Important Questions on Physics

EASY
Sound cannot travel through _____.
EASY
What is the velocity of sound in air?
EASY
Which of the following creatures use ultrasonic sound to catch their prey?
EASY
Bats search out prey and fly in dark nights by emitting and detecting reflections of which type of Sound Waves?
EASY
The speed of sound in seawater is _____:
EASY
Which of the following is not a characteristic of sound wave?
EASY
The vibration of which among the following produces only odd harmonics?
EASY
Ultrasonic waves are produced by making use of ____.
EASY
Which of the following wave types is an example of the waves produced by a moving motorboat on water's surface?
MEDIUM
Which of the following animals can produce ultrasound?

 

MEDIUM
For a wave, wavelength divided by the time period is equal to_____.
EASY
Waves produced at the bottom of the sea due to an explosion are _____:
MEDIUM
What is the rate at which a wave moves through water and is measured in knots?
EASY

Which of the following statements is correct?

EASY

The property of the sound waves that determines the pitch of the sound is its________________.

EASY
Sound waves cannot travel through a
EASY
In which of the following medium does sound travel the fastest?
EASY
The speed of sound is maximum in _____:
EASY

What is the noise level of normal conversation?

1. About 60 dB
2. About 70 dB
3. About 80 dB
4. About 90 dB