QuestionKart - Questions

cds- Question :

In SONAR, we use

A :

ultrasonic waves

B :

infrasonic waves

C :

radio waves

D :

audible sound waves

cds- Question :

Which of the following statements about the sound waves is/are correct ?

1. The distance between two consecutive compressions is called the wavelength.
2. Sound waves are pressure waves.

Select the correct answer using the code given below :

A :

2 only

B :

Both 1 and 2

C :

Neither 1 nor 2

D :

1 only

cds- Question :

bats can fly in dark because they

A :

have strong wings

B :

have sharp eyes

C :

produce ultrasonic waves

D :

are nocturnal

cds- Question :

Which one of the following statements is correct? The velocity of sound :

A :

(a) does not depend upon the nature of media

B :

(b) is maximum in gases and minimum in liquids

C :

D :

(d) is maximum in solids and minimum in gases

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