Home
Class 12
PHYSICS
A road runs midway between two parallel ...

A road runs midway between two parallel rows of buildings. A motorist moving with a speed of 36 Km/h sounds the horn. He hears the echo one second after he has sounded the horn: Then the distance between the two rows of buildings is. (Velocity of sound in air is 330 m/s)

A

`80 sqrt17 m`

B

`40 sqrt17 m`

C

`30 sqrt10 m`

D

`34sqrt10m`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • WAVE MOTION

    AAKASH SERIES|Exercise PRACTICE SET (EXERCISE-II (LEVEL-II(ADVANCED) MORE THAN ONE CORRECT ANSWER TYPE QUESTIONS))|2 Videos
  • WAVE MOTION

    AAKASH SERIES|Exercise PRACTICE SET (EXERCISE-II (LEVEL-II(ADVANCED) INTEGER TYPE QUESTIONS))|1 Videos
  • WAVE MOTION

    AAKASH SERIES|Exercise PRACTICE SET (EXERCISE-II (LEVEL-I(MAIN) STRAIGHT OBJECTIVE TYPE QUESTIONS))|3 Videos
  • UNITS AND MEASUREMENTS

    AAKASH SERIES|Exercise EXERCISE -3|66 Videos
  • WAVE MOTION AND SOUND

    AAKASH SERIES|Exercise PROBLEMS (LEVEL - II)|81 Videos

Similar Questions

Explore conceptually related problems

A man stands in front of a hillock and fires a gun. He hears an echo after 1.5s. The distance of the hillock from the man is (velocity of sound in air is 330ms^-1 )

Minimum distance between sources of sound and reflecting surface for an ECHO is ( Taking velocity of sound in air to be 330 m/s )

A car is moving with a speed of the 72 Kmh^-1 towards a hill. Car blows horn at a distance of 1800 m from the hill. If echo is heard after 10 s.the speed of sound ("in" ms ^-1) is

Two organ pipes of lengths 65cm and70 cm respectively , are sounded simultaneosly. How many beats per second will be produced between the fundamental of the two pipes ? ( Velocity of sound = 330 m //s )

A highway truck has two horns A and B. When sounded together, the driver records 50 beats in 10 seconds. With horn B blowing and the truck moving towards a wall at a speed of 10 m/s, the driver noticed a beat frequency of 5 Hz with the echo. When frequency of A is decreased the beat frequency with two horns sounded together increases. Calculate the frequency of horn A. (Speed of sound in air = 330 m/s)