Download App

Sound — Physics STD 10 — Question

ICSE BoardEnglish MediumSTD 10PhysicsSound1 Mark
MCQ
Bats use this technique to detect their prey and hunt them...... .
Image
  • A
    flapping their wings
  • B
    echo
  • C
    reflection of sound waves
  • ✓
    both (b) and (c)
✓

Answer

Correct option: D.
both (b) and (c)
(d)
both (b) and (c)
Explanation:
Bats can produce and detect high frequency sound waves of about 100 kHz that does not lie in human audible range. These waves are used to locate obstacle at right. These sound waves strike any obstacle in their path and are reflected as echoes to the bat's ear.

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 "MCQ" from Sound→Sound — all question types→Physics STD 10 question papers→ICSE Board STD 10 question papers→ICSE Board question paper generator→

Similar questions

An equiangular prism is a :
→
2000 J of heat energy is required to raise the temperature of 4 kg of a metal by 3°c. Which expression gives the specific heat capacity of the metal?
→
The size of pulleys __________ towards the load and ___________ towards rigid support.
→
In our electric bell if an AC source is applied instead of a DC source what might happen?
→
Load is:
→
The power spent by a source is measured as the amount of work done by the source in:
→
Which is not the property of magnetic lines of force around a straight conductor carrying current?
→
Which of the following statements are correct?
Neutrons have
→
Assertion (A): In the uniform circular motion, the body is acted upon by a centripetal force, normal to displacement.
Reason (A): In the uniform circular motion, work done by the body is zero.
→
Assertion (A): Frequency is a measurable quantity. It depends on the source producing sound.
Reason (A): Pitch depends on the sensation as perceived by a listener.
→