Anshuman stands 60m in front of a wall and clapping continuously with constant interval. He finds that the time taken between one and $26^{t h}$ clap is 9 seconds. The speed of sound if the clap and the echo coincide is -

300 m/s

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333.33 m/s

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353.33 m/s

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233.33 m/s

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Solution

The correct option is B
333.33 m/s

distance travelled by sound to hear one echo= 2 $\times$ 60 = 120m

Time taken between $1^{s t}$ and $26^{t h}$ clap = 26-1 = 25

Time of clapping = $\frac{9}{25}$

Speed of sound = $\frac{120}{\frac{9}{25}}$

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Anshuman stands 60m in front of a wall and clapping continuously with constant interval. He finds that the time taken between one and 26th clap is 9 seconds. The speed of sound if the clap and the echo coincide is -

The correct option is B 333.33 m/sdistance travelled by sound to hear one echo= 2 × 60 = 120m Time taken between 1st and 26th clap = 26-1 = 25 Time of clapping = 925 Speed of sound = 120925

Anshuman stands 60m in front of a wall and clapping continuously with constant interval. He finds that the time taken between one and $26^{t h}$ clap is 9 seconds. The speed of sound if the clap and the echo coincide is -

The correct option is B
333.33 m/s

distance travelled by sound to hear one echo= 2 $\times$ 60 = 120m

Time taken between $1^{s t}$ and $26^{t h}$ clap = 26-1 = 25

Time of clapping = $\frac{9}{25}$

Speed of sound = $\frac{120}{\frac{9}{25}}$