Home
Class 9
PHYSICS
How long will sound take to travel in (a...

How long will sound take to travel in (a) an iron rail and (b) air, both 3.3 km in length ? Take speed of sound in air to be 330 m `s^(-1)` and in iron to be 5280 m `s^(-1)`.

Text Solution

Verified by Experts

(a) 0.625 s , (b) 10 s
Promotional Banner

Topper's Solved these Questions

  • PROPAGATION OF SOUND WAVES

    ICSE|Exercise EXERCISE -8(B) |19 Videos

  • PROPAGATION OF SOUND WAVES

    ICSE|Exercise EXERCISE -8(B) (Multiple choice type)|3 Videos

  • PROPAGATION OF SOUND WAVES

    ICSE|Exercise EXERCISE -8(A) (Multiple choice type)|4 Videos

  • PRESSURE IN FLUIDS AND ATMOSPHERIC PRESSURE

    ICSE|Exercise Exercise -4(B)Numericals|5 Videos

  • REFLECTION OF LIGHT

    ICSE|Exercise EXERCISE 7(C)|54 Videos

Similar Questions

Explore conceptually related problems

How long will sound take to travel 3.3 km in iron rail ? Take speed of sound in iron =5280 ms^(-1)

A sound wave travelling in water has wavelength 0.4 m. Is this wave audible in air ? (The speed of sound in water = 1400ms^(-1) )

A bat emits ultrasonic sound of frequency 100 kHz in air. If this sound meets a water surface, the wavelengths of the reflected and transmitted sound are (Speed of sound in air = 340 m s^(-1) and in water = 1500 m s^(-1) )

A sound made on the surface of a lake takes 3 s to reach a boatman. How much time will it take to reach a diver inside the water at the same depth ? Velocity of sound in air = 330 ms^(-1) Velocity of sound in water = 1450 ms^(-1)

A closed organ pipe can vibrate at a minimum frequency of 500 Hz. Find the length of the tube. Speed of sound in air = 340 m s^-1 .

The speed of sound in air at 15^(@)C and 76 cm of Hg is 340 m/s. The speed of sound in air at 30^(@)C and 75 cm of Hg will be in m/s)

Find the fundamental, first overtone and second overtone frequencies of an open organ pipe of length 20 cm. Speed of sound in air is 340 m s^-1 .

Calculate the minimum distance in air required between the source of sound and the obstacle to hear an echo. Take speed of sound in air = 350 m s^(-1)

A source of sound of frequency 1000 Hz moves to the right with a speed of 32(m)/(s) relative to the ground. To its right there is a reflecting surface moving to the left with a speed of 64(m)/(s) relative to the ground. Take the speed of 64(m)/(s) . Relative to the ground. Take the speed of sound in air to be 332(m)/(s) and find (a) The wavelength of the sound emitted in air by the source, (b) the number of waves per second arriving at the reflecting surface, (c ) The speed of the reflected waves and (d) The wavelength of the reflected waves.

The time interval between a lightning flash and the first sound of thunder is 5 s. If the speed of sound in air is 330 m s^(-1) , find the distance of flash from the observer.