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WorksheetsPHY132 - Term Test 2 Review - Winter 20204
Total questions: 15
Worksheet time: 25mins
A loop is placed in the external magnetic field, as shown in the picture. The loop is rotating about the vertical axis shown.
Electric current will induced in the loop.
True
False
Angle of refraction is smaller than angle of incidence when light travels from glass to air.
True
False
What kind of mirror creates no image when an object is placed distance f from the mirror's surface?
Concave.
Convex.
When light travels from air to water the wavelength of light decreases.
True
False
Electromagnetic wave travels in a medium with refractive index n1 and reaches a boundary with another medium with refractive index n2>n1.
Which of the following statements is true?
Refracted wave is in phase with the incident wave.
Refracted wave is out of phase with the incident wave.
Consider situations shown in the pictures below. The primary object on the right hand side causes a current to be induced in the loop on the left.
Which of the situations is correct?
When ray of light travels from water (nwater=1.33) to air, the angle of refraction is equal to 27 degrees.
What is the angle of incidence?
15o
20o
37o
48o
What is the refractive index of the clad in the fiber optic cable if the refractive index of the core is 1.59 and the critical angle is 72o?
1.00
1.44
1.51
1.67
A coherent light beam of wavelength λ passes through the diffraction grating with N lines/mm, creating an interference pattern on the screen.
How would the position of the bright spot change if grating with 2N lines/mm was used, assuming d2N>λ?
No interference pattern would be observed.
The positions of the bright spots would not change.
The bright spots would move closer together.
The bright spots would move farther apart.
When an object of height h is reflected in the mirror it's image is real and the absolute height of the image is equal to 2h/3.
What is (in terms of h) the focal length o the mirror?
-2.5h
2.5h
0.4h
-0.4h
Which systems create smaller, virtual images regardless of the position of the object?
Concave mirrors and concave lenses
Convex mirrors and convex lenses
Concave mirrors and convex lenses.
Convex mirrors and concave lenses
An image is observed 8.0 cm from a diverging mirror with a focal length |f|=12.0 cm.
How far from the surface of the mirror is the object?
24.0 cm
20.8 cm
8.3 cm
4.8 cm
In a double slit experiment the angular position of a third fringe is equal to 34o. What is the angular position of the forth bright fringe?
43.0o
45.3o
48.2o
51.8o
How long would it take light to travel through a 4.0 cm thick layer of solid argon (n=1.27)
0.133 ns
0.169 ns
0.105 ns
0.215 ns
A beam of light is hitting a vertical wall at the angle of 30 degrees above the horizontal. A mirror is placed on the wall, redirecting the beam of light so that it makes angle of 50 degrees below horizontal when it reflects.
What is the angle that the mirror makes with the wall?
20 degrees
15 degrees
10 degrees
5 degrees
