हिंदी

A sound source sends waves of 400 Hz. It produces waves of wavelength 2.5 m. The velocity of sound waves is ______.

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प्रश्न

A sound source sends waves of 400 Hz. It produces waves of wavelength 2.5 m. The velocity of sound waves is ______.

विकल्प

  • $$100 \mathrm{~ms}^{-1}$$

  • $$1000 \mathrm{~ms}^{-1}$$

  • $$10,000 \mathrm{~ms}^{-1}$$

  • none of these

MCQ
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उत्तर

A sound source sends waves of 400 Hz. It produces waves of wavelength 2.5 m. The velocity of sound waves is $${\underline{\mathbf{1000 \mathbf{~ms}^{-1}}}}$$.

Explanation:

\[ v=f\lambda \]

\[=400\times2.5 \]

\[= {\mathrm{1000\ \mathrm{m\,s^{-1}}}} \]

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अध्याय 3: Sound - Multiple Choice Questions and Assertion-Reason Type Questions [पृष्ठ २१३]

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फ्रैंक Physics Part 2 [English] Class 10 ICSE
अध्याय 3 Sound
Multiple Choice Questions and Assertion-Reason Type Questions | Q 10. | पृष्ठ २१३
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