If the speed of sound in air is 340 metres per second, calculate (i) the waveleneth when the frequency is 256 Hz; (ii) the frequency when the wavelength is 085m A small piece of cork in a ripple tank oscillates up and down as the ripples travel at 0-20 m s1, have 5:0 mm

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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rised.
EA sound wave is a transverse wave.
If the speed of sound in air is 340 metres per second, calculate (i) the wavelength
nger Questions
when the frequency is 256 Hz; (ii) the frequency when the wavelength is 085m
A small piece of cork in a ripple tank oscillates up and down as ripples pass it. If
Ahe ripples travel at 0-20 m s ', have a wavelength of 15 mm and an amplitude of
5-0 mm, what is the maximum velocity of the cork? (L.)
A beam of electromagnetic waves of wavelength 3-0 cm is directed normally at a
grid of metal rods, parallel to each other and arranged vertically about 20 cm apart.
Behind the grid is a receiver to detect the waves. It is found that when the grid is
in this position, the receiver detects a strong signal but that when the grid is rotated
in a vertical plane through 90°, the detected signal strength falls to zero. Whal
property of the wave gives rise to this effect? Account briefly in general temia ter
ihe effect described above. (L.)
Transcribed Image Text:rised. EA sound wave is a transverse wave. If the speed of sound in air is 340 metres per second, calculate (i) the wavelength nger Questions when the frequency is 256 Hz; (ii) the frequency when the wavelength is 085m A small piece of cork in a ripple tank oscillates up and down as ripples pass it. If Ahe ripples travel at 0-20 m s ', have a wavelength of 15 mm and an amplitude of 5-0 mm, what is the maximum velocity of the cork? (L.) A beam of electromagnetic waves of wavelength 3-0 cm is directed normally at a grid of metal rods, parallel to each other and arranged vertically about 20 cm apart. Behind the grid is a receiver to detect the waves. It is found that when the grid is in this position, the receiver detects a strong signal but that when the grid is rotated in a vertical plane through 90°, the detected signal strength falls to zero. Whal property of the wave gives rise to this effect? Account briefly in general temia ter ihe effect described above. (L.)
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