Home
Class 12
PHYSICS
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

`4.1 xx10^-4m`

B

`1.1 xx10^-4m`

C

`3.1 xx10^-4m`

D

`4.1 xx10^-3m`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

A hospital uses an ultrasonic scanner to locate tumour in a tissue. What is the wavelength of sound in a tissue in which the speed of sound is 1.7 km//s ? The operating frequency of the scanner is 4.2 MHz .

A hospital uses an ultrasonic scanner to locate tumour in a tissue. What is the wavelength of sound in a tissue in which the speed of sound is 1.7 km//s ? The operating frequency of the scanner is 4.2 MHz .

A hospital uses an ultrasonic scanner to locate tumours in a tissue. The operating freqency of the scanner is 3.2 MHz. The speed of sound in a tissue is 1.6 km s^(-1) . The wavelength of sound in the tissue is a) 0.25 mm b) 0.5 mm c) 0.75 mm d) 1 mm

A sound wave travelling in water has wavelength 0.4 m. Is this wave audible in air ? (The speed of sound in water = 1400ms^(-1) )

A bat can hear sound of frequencies up to 120 kHz. Determine the minimum wavelength of sound which it can hear. Take speed of sound in air to be 344 ms^(-1)

A bat emits ultrasonic sound of frequency 100 kHz in air. If this sound meets a water surface, the wavelengths of the reflected and transmitted sound are (Speed of sound in air = 340 m s^(-1) and in water = 1500 m s^(-1) )

A source of sound and an observer are approaching each other with the same speed, which is equal to (1/10) times the speed of sound. The apparent relative change in frequency of source is

A bat emits ultrasonic sound of frequency 1000 kHz in air. If the sound meets a water surface, what is the wavelength of (i) the reflected sound, (ii) the transmitted sound ? Speed of sound in air is 340 ms^(-1) and in water 1486 ms^(-1) .

A person can hear sound waves in the frequency range 20 Hz to 20 kHz. Find the minimum and the maximum wavelengths of sound that is audible to the person. The speed of sound is 360 m s^-1 .

Calculate the beat frequency heard when two sound sources of wavelength 35cm and 35.2 cm are sounded together. The speed of sound in air is 330 ms^(-1)