Reflection of Sound

Sound waves can undergo total internal reflection.

Can sound waves undergo total internal reflection? Explain.

Why echo is small than reverberation?

What is the relation between an echo and the acoustic?

Is echo an example of reverberation?

Is echo the same as reverberation?

What are the conditions for echo of sound?

Differentiating between Echo and Reverberation.

Select bad reflectors of sound from the following:

Hard, thick, firm materials are usually good reflectors of sound.

Brick is a bad reflector of sound.

Name some good and bad reflectors of light.

Why do we use SONAR in the sea and the RADAR in the air and ground?

"SONAR is used to find the distance of an object in the sea and RADAR is mainly used for air and ground traffic". Mention three other differences between them.

RADAR stands for Radio Detection and ranging and SONAR stands for Sound Navigation and Ranging.

List the differences between SONAR and RADAR.

What makes a good stethoscope? How do you check the quality of a stethoscope?

Explain the different types of stethoscopes.

What is the principle of stethescope?

Describe the construction and working of a stethoscope.