Maths-

General

Easy

Question

# The value of is

Hint:

### In this question, we have to find the value of . For this first we will simplify the trigonometric function. Then as we have to find the sum of infinity terms, so, we can use the limit and so solving the sima and the limit we can get the required value.

## The correct answer is:

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### 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

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the path difference between maxima and consecutive minima=

∴

Or

λ=4x=4×9 cm=36cm=0.36m

the path difference between maxima and consecutive minima=

∴

Or

λ=4x=4×9 cm=36cm=0.36m

### 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

physics-General

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

the path difference between maxima and consecutive minima=

∴

Or

λ=4x=4×9 cm=36cm=0.36m

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The value of