Home
Class 12
PHYSICS
two trains move towards each other sith ...

two trains move towards each other sith the same speed. The speed of sound is 340 m/s. If the height of the tone of the whistle of one of them heard on the other changes 9/8 times, then the speed of each train should be

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • WAVE MOTION

    AAKASH SERIES|Exercise PRACTICE SET (EXERCISE-I (LEVEL-I(MIAN)STRAIGHT OBJECTIVE TYPE QUESTIONS))|5 Videos
  • WAVE MOTION

    AAKASH SERIES|Exercise PRACTICE SET (EXERCISE-I (LEVEL-II(ADVANCED)STRAIGHT OBJECTIVE TYPE QUESTIONS))|8 Videos
  • WAVE MOTION

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE-VI (LEVEL-II(ADVANCED) MATRIX MATCHING TYPE QUESTION))|1 Videos
  • UNITS AND MEASUREMENTS

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

    AAKASH SERIES|Exercise PROBLEMS (LEVEL - II)|97 Videos

Similar Questions

Explore conceptually related problems

The sound of thunder is heard 3 s after flash of lightning. If the speed of sound is 340 m/s, find the height of the cloud.

The distance between two stations is 340 km. Two trains start simultaneously from these stations on parallel tracks to cross each other. The speed of one of them is greater than that of the other by 5 km/hr. If the distance between the two trains after 2 hours of their start is 30 km, find the speed of each train.

Wind is blowing west to east along twoparallelracs. Two trais moving with the same speed in opposite directions on these tracks have the steam tracks. If one stream track isdouble than the other, what is the speed of each train ?

Two trains are travelling towards each other both at a speed of 90 km h^-1 . If one of the trains sounds a whistle at 500 Hz, what will be the apparent frequency heard in the other train ? Speed of sound in air = 350 m s^-1 .

A person is listening to two trains one approaching him while the other moving away from him. The speed of both the trains is 5 m/s. If both trains give off whistle of their nature frequency of 280 Hz then the observer will hear ... no of beats/s. (Velocity of sound = 350 m/s)

Two train are moving in a straight line in the same direction with a speed of 80 km/h. The relative velocity of one trains w.r.t. each other is

A source of sound of frequency 500 Hz is moving towards an observer with velocity 30 m/s . The speed of sound is 330 m/s . the frequency heard by the observer will be

Two trains are moving towards each other at speeds of 144 km/hr and 54 km/hr relative to the ground. The first train sounds a whistle of frequency 600 Hz. Find the frequency of the whistle as heard by a passenger in the second train before the trains meet. (y =340m/s)

Two trains are moving towards each other at speeds of 72kmh^-1 and 54 kmh^-1 relative to the ground. The first train sounds a whistle of frequency 600 Hz. Find the frequency of the whistle as heard by a passenger in the second train a. before the trains meet and b. after the trains have crossed each other. The speed of sound in air is 340 ms^-1

Two trains are moving towards each other at speed of 144 km/hr and 54 km/hr relative to the ground. The second sounds a whistle of frequency 710 Hz, the frequency of this whistle as heard by a passenger in the first train after the trains have crossed each other is x xx 10^2Hz , what is value of x. (v = 340 m/s)

AAKASH SERIES-WAVE MOTION-LECTURE SHEET (EXERCISE-VI (LEVEL-II(ADVANCED) INTEGER TYPE QUESTIONS))
  1. two trains move towards each other sith the same speed. The speed of s...

    Text Solution

    |