As light travels from vacuum (n = 1) to a medium such as glass (n > 1), which of the following properties remains the same?
(a) wavelength
(b) wave speed
(c) frequency
1.(a)
2.(b)
3.(c)
4.(b) and (c)
5.None, all change.
[Ques. 2] A material has an index of refraction that increases continuously from top to bottom. Of the three paths shown in the figure, which path will a light ray follow as it passes through the material?
[Ques. 3]
[Ques. 4] fMlmPqJ3kmcyXROhdhQ5IWkYLgOnr
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 />
1.Path (a)
2.Path (b)
3.Path (c)"
[Ques. 5] If beam 1 is the incoming beam in the figure below, which of the other four beams are due to refraction?
[Ques. 6] If beam 1 is the incoming beam in the figure below, which of the other four beams are due to reflection?
[Ques. 7] Which part of the figure below, (a) or (b), better shows specular reflection of light from the roadway?
[Ques. 8] Which of the following statements are true about light waves?
a)The higher the frequency, the longer the wavelength.
b)The lower the frequency, the longer the wavelength.
c)Higher-frequency light travels faster than lower-frequency light.
d)The shorter the wavelength, the higher the frequency.
e)The lower the frequency, the shorter the wavelength.
1.(b) only
2.(c) and (d)
3.(b) and (d)
4.(b) only
[Ques. 9] In an apparatus such as that in the figure below, suppose the black disk is replaced by one with half the radius. Which of the following are different after the disk is replaced?<--EndFragment--> ced current?
a)radiation pressure on the disk
b)radiation force on the disk
c)radiation momentum delivered to the disk in a given time interval
[Ques. 10] Suppose XL > XC in the figure below and, with both switches open, a piece of iron is slipped into the inductor. During this process, what happens to the brightness of the bulb?