मराठी

Guess which sound has a higher pitch: - Science

Advertisements
Advertisements

प्रश्न

Guess which sound has a higher pitch:

पर्याय

  • guitar

  • car horn

MCQ

उत्तर

Guitar

Explanation:

The vibration frequency of a guitar sound is higher than that of a car horn. Since the pitch of a sound is proportional to its frequency, the guitar has a higher pitch than a car horn.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 12: Sound - Intext Questions [पृष्ठ १६६]

APPEARS IN

एनसीईआरटी Science [English] Class 9
पाठ 12 Sound
Intext Questions | Q 2 | पृष्ठ १६६

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

A boy on a hill A fires a gun. The other boy on hill B hears the sound after 4 s. If the speed of sound is 330 m s-1, find the distance between the two hills.


Which term is used to denote a speed greater than the speed of sound?


A cricket ball is seen to hit the bat first and the sound of hitting is heard a little later. Why?


A man is kidnapped, blindfolded and imprisoned in a big room. How could the man tell if he was in : a village


Sunil is standing between two walls. The wall closest to him is at a distance of 660 m. If he shouts, he hears the first echo after 4 s and another after another 2 seconds.

  1. What is the velocity of sound in air?
  2. What is the distance between the two walls? 

Numerical problem.

A stone is dropped from the top of a tower 750 m high into a pond of water at the base of the tower. Calculate the number of seconds for the splash to be heard? (Given g = 10 m s–2 and speed of sound = 340 m s–1)


The Velocity of sound is high in gases than liquids.


Why does sound travel faster on a rainy day than on a dry day?


Air temperature in the Rajasthan desert can reach 46°C. What is the velocity of sound in air at that temperature? (V0= 331 ms–1)


Numerical problems:

Two persons are at opposite ends of a steel rod. One strikes the end of the rod with a stone. Find the ratio of time taken by the sound wave in the air and in steel to reach the second person. (Sound of speed in steel = 5960 ms-1, Sound of speed in air = 344 ms-1).


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×