Physics-

General

Easy

Question

# A long cylindrical tube carries a highly polished piston and has a side opening. A tuning fork of frequency n is sounded at the sound heard by the listener charges if the piston is moves in or out. At a particular position of the piston is moved through a distance of 9 cm, the intensity of sound becomes minimum, if the speed of sound is 360 m/s, the value of n is

- 129.6 Hz
- 500 Hz
- 1000 Hz
- 2000 Hz

## The correct answer is: 1000 Hz

### When piston moves a distance, path difference change by 2 xs.

the path difference between maxima and consecutive minima=

∴

Or

λ=4x=4×9 cm=36cm=0.36m

### Related Questions to study

Maths-

The value of

The value of

Maths-General

Maths-

For any real , the maximum value of is

For any real , the maximum value of is

Maths-General

chemistry-

### Identify A and B

### Identify A and B

chemistry-General

Maths-

### If then sin (A-B) =

### If then sin (A-B) =

Maths-General

chemistry-

### Observer the following reactions and predict the nature of A and B

### Observer the following reactions and predict the nature of A and B

chemistry-General

chemistry-

### on ozonolysis gives

### on ozonolysis gives

chemistry-General

chemistry-

### Which of the following reactions will yield 2, 2-dibromopropane?

### Which of the following reactions will yield 2, 2-dibromopropane?

chemistry-General

Maths-

### If then is equal to

### If then is equal to

Maths-General

Maths-

### If where being an acute angle then is equal to

### If where being an acute angle then is equal to

Maths-General

maths-

### Let A,B,C be three angles such that and . Then, all possible values of P such that A,B,C are the angles of a triangle is

### Let A,B,C be three angles such that and . Then, all possible values of P such that A,B,C are the angles of a triangle is

maths-General

chemistry-

### is an example for

### is an example for

chemistry-General

Maths-

### If where then =

### If where then =

Maths-General

chemistry-

### What is the hybridization state of benzyl carbonium ion

### What is the hybridization state of benzyl carbonium ion

chemistry-General

maths-

### An integral value of a for which there is a solution of the equation is

### An integral value of a for which there is a solution of the equation is

maths-General

Maths-

### If where x and y s a root of the equation

### If where x and y s a root of the equation

Maths-General