A light wave has a 670 mm wavelength in air . It\'s wavelength in a transparent
ID: 3897018 • Letter: A
Question
A light wave has a 670 mm wavelength in air . It's wavelength in a transparent solid is 420 nm.
A) what is the speed of light in this solid?
B) what is the light's frequency in solid?
FIGURE P20.41 is a history graph at x =0 m of a wave traveling in the positive x-direction at4.0 m/s.
A) what is the wavelength?
B) what is the phase constant of wave?
C) write the displacement equation for this wave.
Light of wavelength 500 nm illuminates a double slit, and the interference pattern is observed on a screen. At the position of the m=2 bright fringe,how much father is it to the more distance slit than to the nearest slit?
A double-slit experiment is performed whit light of wavelength 600nm. The bright interference fringes are spaced 1.8 mm apart on the viewing screen. What will the fringe spacing be if the light is changed to a wavelength of 400 nm?
In a single-slit experiment, the slit width is 200 times the wavelength of the light. What is the width (in mm) of the central maximum on a screen 2.0 m behind the slit?
Explanation / Answer
speed of light in solid = 3*10^8
frequency = 3*10^8/420 = 7.14 *10^5
for second I dont have figure,
WAvelength is the length of one complete wave at x axis
y = A sin(wt + phi)
write the eqaution of wave travelling , phi is the phase constant
get y, by puttinh values at the point you need displacement
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