Home
Class 12
PHYSICS
A string 25 cm long and having a mass of...

A string 25 cm long and having a mass of 2.5g is under tension. A pipe closed at one end is 40 cm long. When the string is set vibrating in its firsy overtone and the air in the pipe in its fundamental frequency, 8 beats per sec are heard. It is observed that decreasing the tension in the string decreases the beat frequency. If the speed of sound in air is 320 m/s, find the tension in the string.

A

25.03 N

B

27.04 N

C

37.01 N

D

20.02 N

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-V (LEVEL-II(ADVANCED) MORE THAN ONE CORRECT ANSWER TYPE QUESTIONS))|1 Videos

  • WAVE MOTION

    AAKASH SERIES|Exercise PRACTICE SET (EXERCISE-V (LEVEL-II(ADVANCED) LINKED COMPREHENSION TYPE QUESTIONS))|3 Videos

  • WAVE MOTION

    AAKASH SERIES|Exercise PRACTICE SET (EXERCISE-V (LEVEL-I(MAIN) STRAIGHT OBJECTIVE TYPE QUESTIONS))|15 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 5.5 m long string has a mass of 0.035 kg. If the tension in the string is 77 N, the speed of a wave on the string is

When the tension in a string is increased by 44%. the frequency increased by 10Hz the frequency of the string is

The first overtone in a closed pipe has a frequency

If a particle tied to the end of string is set in circular motion then the tension of the string is

A stretched wire of some length under a tension is vibrating with its fundamental frequency. Its length is decreased by 45% and tension is increased by 21%. Now its fundamental frequency

A tube 1m long is closed at one end. A stretched wire is placed near the open end. The wire is 0.3 m long and has a mass of 0.01 kg. It is held fixed an both ends and vibrates in its fundamental mode. It sets the air column in the tube into vibration all its fundamental frequency by resonance Find the tension in the wire. Speed of sound in air: 330 m/s