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  • Calculate the speed of sound waves in water and find the wave length of a wave having a frequency of  242 Hz. (Take,  <img alt="B_{water}=2 \times 10^9 \mathrm{~Pa}" src="https://ent

Calculate the speed of sound waves in water and find the wave length of a wave having a frequency of  242 Hz. (Take,  B_{water}=2 \times 10^9 \mathrm{~Pa} )

 

Option: 1

1414 \mathrm{~m} / \mathrm{s}, 6 \mathrm{~m}


Option: 2

1414 \mathrm{~m} / \mathrm{s}, 5.84 \mathrm{~m}


Option: 3

1404 \mathrm{~m} / \mathrm{s}, 5.84 \mathrm{~m}


Option: 4

14.4 \mathrm{~m} / \mathrm{s}, 4.75 \mathrm{~m}


Answers (1)

best_answer

speed of sound wave.

V=\sqrt{\frac{B}{a}}=\sqrt{\frac{2 \times 10^9}{10^3}} \\

V=\sqrt{2 \times 10^6}=1.414 \times 1000 \\

=1414 \mathrm{~m} / \mathrm{s} .

wave \,\,length, \lambda=\frac{V}{f}
\lambda=\frac{1414}{242}=5.84 \mathrm{~m}

Posted by

seema garhwal

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