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A hospital uses an ultrasonic scanner to...

A hospital uses an ultrasonic scanner to locate tumours in a tissue. The operating frequency of the scanner is 4.2 MHz. The speed of sound in a tissue is `1.7 km s^(-1)`. The wavelength of the sound in the tissue is close to

A

`4 xx 10^(-4) m`

B

`8 xx 10^(-4) m`

C

`4 xx 10 ^(-3) m`

D

`8 xx 10^(-3) m`

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TARGET PUBLICATION-Sound-Exercise
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  2. The property that distinguishes longitudinal waves from transverse wav...

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  3. A hospital uses an ultrasonic scanner to locate tumours in a tissue. T...

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  4. Choose the correct option? A source of frequency 500 Hz produces wave...

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  5. Choose the correct option? A tuning fork vibrates and produces concen...

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  6. Loudness of the sound does not depend upon

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  7. The temperature at which the velocity of sound in air will be 1.5 time...

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  8. Human ear cannot hear those mechanical waves whose frequency lies in t...

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  9. In oscillatory motion, particles of the medium perform

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  10. For a wave which of the following statement is true?

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  11. In case of sound waves, amplitude means

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  12. Which of the following is NOT the characteristic of the progressive wa...

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  13. A tuning fork produces waves in a medium. If the temperature of the me...

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  14. The frequency of a sound wave is n and its velocity is v. If the frequ...

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  15. In a sinusoidal wave, the time required for a particular point to move...

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  16. An observer standing at the sea-coast, observes 48 waves reaching the ...

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  17. The following figure shows the shape of part of a long string in which...

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  18. The distance between a crest and its nearest trough is 2.5 cm. If 4 co...

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  19. The tuning forks of frequencies 320 Hz and 340 Hz produce sound waves ...

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  20. Choose the WRONG statement

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