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A hospital uses an ultrasonic scanner to...

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

A

`4 xx 10^(-3) m`

B

`8 xx 10^(-3) m`

C

`4 xx 10^(-4) m`

D

`8 xx 10^(-4)m`

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The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-WAVES-ASSIGNMENT ( SECTION-C ( Previous year Questions ))
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  19. The equation of a simple harmonic wave is given by y = 3 sin"(pi)/(2)...

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