Home
Class 12
PHYSICS
A car is moving with a speed of the 72 K...

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

A

300

B

320

C

340

D

360

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • WAVE MOTION

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE-IV (LEVEL-II(ADVANCED) STRAIGHT OBJECTIVE TYPE QUESTIONS))|5 Videos

  • WAVE MOTION

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE-IV (LEVEL-II(ADVANCED) MORE THAN ONE CORRECT ANSWER TYPE QUESTIONS))|1 Videos

  • WAVE MOTION

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE-III (LEVEL-II(ADVANCED) INTEGER TYPE QUESTIONS))|2 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 vehicle moving with a speed of 18 kmh^(-1) covers……….m in 1 s.

An engine approaches a hill with a constant speed. When it is at a distance of 0.9 km it blows a whistle, whose echo is heard by the driver after 5 sec. If the speed ofsound in air is 330 m/s, calculate the speed of the engine.

A car is moving with a speed of 30 ms^(-1) on a circular path of radius 500 m. If its speed is increasing at the rate of 2 ms^(-2) , the net acceleration of the car is

The driver of a car travelling with speed 30 m/ sec towards a hill sounds a horn of frequency 600 Hz. If the velocity of sound in air is 330 m/s, the frequency of reflected sound as heard by driver is