Topper's Solved these Questions
Similar Questions
Explore conceptually related problems
PRADEEP-SOUND-NCERT Exercise
- Cite an experiment to show that sound needs a meterial for its propaga...
Text Solution
|
- Why is sound wave called a longitudinal wave ?
Text Solution
|
- Which characteristic of the sound helps you to identify your friend by...
Text Solution
|
- Flash ans thunder are produced simultaneously. But thunder is heard a ...
Text Solution
|
- A person has a hearing range from 20 Hz to 20 kHz. What are the typica...
Text Solution
|
- Two children are at opposite ends of an aluminium rod. One strikes the...
Text Solution
|
- The frequency of a source of sound is 100 Hz. How many times does it v...
Text Solution
|
- Does sound follow the same laws of reflection as light does ? Explain.
Text Solution
|
- When a sound is reflected from a distant object, an echo is produced. ...
Text Solution
|
- Give two practical applications of reflection of sound waves.
Text Solution
|
- A stone is dropped from the top of a tower 500 m high into a pond of w...
Text Solution
|
- A sound wave travels at a speed of 339 m//s. If its wavelength is 1.5 ...
Text Solution
|
- What is reverberation ? How can it be reduced ?
Text Solution
|
- What is loudness of sound ? What factors does it depend on ?
Text Solution
|
- Explain how bats use ultrasound to catch a prey.
Text Solution
|
- How is ultrasound used for cleaning ?
Text Solution
|
- Explain the working and application of a sonar.
Text Solution
|
- A sonar device on a submarine sends out a signal and receives an echo ...
Text Solution
|
- Explain how defects in a metal block can be detected using ultrasound.
Text Solution
|
- Explain how the human ear works.
Text Solution
|