Home
Class 12
PHYSICS
When block hangs in air, the horizontal ...

When block hangs in air, the horizontal string vibrates in its tenth harmonic in unison with a particular tuning fork. When block is placed in elevator acceleration in downward direction, the same string vibrates in its eleventh harmonic with same tuning fork. What will be acceleration of elevator ?

A

`(11/10) g`

B

`(10/11)g`

C

`(21/121) g`

D

`(g/11)`

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

Figure shows a string stretched by a block going over a pulley. The string vibrates in its tenth harmonic in unison with a particular tuning fork. When a beaker containing water is brought under the block so that the block is completely dipped into the beaker, the string vibrates in its eleventh harmonic. Find the density of the material of the block. .

A string is stretched by a block going over a pulley . The string vibrates in its fifth harmonic in unison with a particular tuning fork . When a beaker containing a liquid of density rho is brought under the block so that the block is completely dipped into the beaker , the string vibrates in its seventh harmonic in unison with the tuning fork . Find the density of the material of the block.

An organ pipe of length L open at both ends is found to vibrate in its harmonic when sounded with a tuning fork of 480Hz. What should be the length of a pipe closed at one end, so that it also vibrates in its first harmonic with the same tuning fork?

The string AB vibrates in two loops with a tuning fork when block hasngs in air. Now block is completely immersed in water, the string vibrates in three loops with same tuning fork. The specific gravity of block is :

One end of a horizontal string is attached to a vibrating blade , and the other end passes over a pulley as in Fig. 7.49 (a). A sphere of mass 2.00 kg hangs at the end of the string . The string is vibrating in its second harmonic . A container of water is raised under the sphere so that the sphere is completely submerged . In this configuration , the string vibrates in its fifth harmonic as shown in Fig . 7.49 (b). What is the radius of the sphere ?

A wooden block and a metal coin are connected by a string as shown in figure. Both have same volume and both are placed in a beaker of water. Now the beaker is given acceleration towards right, then the string will tilt towards

A sonometer wire having a length of 1.50 m between the bridges vibrates in its second harmonic in resonance with a tuning fork of frequency 256 Hz. What is the speed of the transverse wave on the wire ?

A string under a tension of 129.6 N produces 10 beats per sec when it is vibrated along with a tuning fork. When the tension in the string is increased to 160 N, it sounds in unison with the same tuning fork, Calculate the fundamental frequency of the tuning fork.

A tuning fork is in unison with 1.0 m length of sonometer wire. When the stretching weights are immersed in water, the length of the wire in unison with the same tuning fork is 0.934 m. Calculate the density of the material of the weights ?

A sonometer wire is vibrating is resonance with a tuning fork. Keeping the tension applied same, the length of the wire is doubled. Under what conditions would the tuning fork still be in resonance with the wire?