Give two practical applications of reflection of sound waves. - Vidyadip

Question

Give two practical applications of reflection of sound waves.

✓

Answer

Reflection of sound is used to measure the distance and speed of underwater objects. This method is known as SONAR.
Working of a stethoscope is also based on reflection of sound. In a stethoscope, the sound of the patient’s heartbeat reaches the doctor’s ear by multiple reflection of sound.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Que-Ans (Each of 2 Mark )" from Sound→Sound — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

Explain why, big boulders can be moved easily by flood.

Name the types of bacteria involved in nitrification.

What is an atom? How do atoms usually exist?

When ice at -10°C is slowly heated, temperature of ice gradually increases till 0°C, the temperature of the system remains constant when the ice change into water and then further rises. Explain the observation.

Why do the passengers in a bus tend to fall backward when it starts suddenly?

What is the characteristic of nuclear envelope?

What are parazoa?

The echo of a sound is heard after 5 seconds. If the speed of sound in air be 342m/s, calculate the distance of the reflecting surface.

Explain why, it is easier to stop a tennis ball than a cricket ball moving with the same speed.

How do prokaryotic cells reproduce? Name two prokaryotes.