A certain kind of glass has nblue = 1.650 for blue light and nred = 1.610 for red light. If a beam of white light (containing all colors) is incident at an angle of 60.0, what is the angle between the red and blue light inside the glass?
a. 0.45.0
c. 1.81
b. 0.22.3
d. 0.882
[Ques. 2] As a copper wire is heated, its length increases by 0.200. What is the change of the temperature of the wire? (aCu = 16.6 10-6/C)
a. 120C
c. 30.1C
b. 60.2C
d. 6.0C
[Ques. 3] Dispersion occurs when:
a. a material changes some frequencies more than others.
b. a material slows down some wavelengths more than others.
c. some materials bend light more than other materials.
d. light has different speeds in different materials.
[Ques. 4] At 20C an aluminum ring has an inner diameter of 5.000 cm, and a brass rod has a diameter of 5.020 cm. Keeping the brass rod at 20C, which of the following temperatures of the ring will allow the ring to just slip over the brass rod? (aAl = 2.4 10-5 /C, abrass = 1.9 10-5/C )
a. 111C
c. 228C
b. 187C
d. 437C
[Ques. 5] A ray of white light, incident upon a glass prism, is dispersed into its various color components. Which one of the following colors experiences the least angle of deviation?
a. orange
c. green
b. violet
d. red
[Ques. 6] Suppose the ends of a 20-m long steel beam are rigidly clamped at 0C to prevent expansion. The rail has a cross-sectional area of 15 cm2 . What force does the beam exert when it is heated to 40C? (asteel = 1.1 10-5/C, Ysteel = 2.0 1011 N/m2)
a. 2.6 105 N
c. 1.3 105 N
b. 5.6 104 N
d. 6.5 102 N
[Ques. 7] Three materials with n1 < n2 < n3 are arranged in layers of uniform thickness. A light ray in air enters the first layer at an angle of incidence of 40 and the ray eventually exits the third layer at the refracted angle q in air. What is the value of q?
a. Some angle more than 40.
c. 40.
b. Insufficient information to answer.
d. Some angle less than 40.
[Ques. 8] A long steel beam has a length of fifty meters on a cold day when the temperature is 0C. What is the length of the beam on a hot day when T = 40C? (asteel= 1.1 10-5/C)
a. 50.044 m
c. 50.088 m
b. 50.022 m
d. 50.0044 m
[Ques. 9] The lowest possible value for the index of refraction is:
a. 0.
c. 0.707.
b. 1.
d. 3-1/2.
[Ques. 10] Between 0C and 4C, the volume coefficient of expansion for water:
a. is positive.
c. is becoming less dense.
b. is zero.
d. is negative.
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