True-false questions are worth 2 points each, three-choice multiple
choice questions are worth 3 points each, five-choice multiple choice
questions are worth 6 points each. The maximum possible score is 115.
The exam period was 90 minutes; the mean was 85.3; the median was 88.
Click here to see page1
page2 of the formula sheet that came
with the exam.
(a) parallel to the ground along an east-west direction
(b) parallel to the ground along a north-south direction
(c) normal to the ground
(a) 9.4 m2
(b) 17.0 m2
(c) 38.3 m2
(d) 63.2 m2
(e) 173.7 m2
A car is approaching an intersection with traffic lights at a
constant speed. An observer at rest relative to the traffic lights sees
a yellow light. At what speed would the carís driver see a green light?
Assume the wavelengths of yellow and green light are 570 and 550 nm,
(a) 650 km/hour
(b) 750 km/sec
(c) 10909 km/sec
(a) at a speed higher than above
(b) at a speed smaller than above
(c) The driver would not see a red light at any speed.
Unpolarized light passes through two polarizers oriented as shown in
the figure. The intensity of light coming out from the second polarizer
S2 is 33% of the intensity of the unpolarized light
What is the angle between the transmission axes of the
An object P is placed 3 meters away from a concave mirror as shown in
the figure. The focal length of the mirror is 5 meters.
What is the magnitude of the distance from the mirror to the image?
(a) 2.0 m
(b) 3.0 m
(c) 5.2 m
(d) 5.0 m
(e) 7.5 m
(a) real and inverted.
(b) virtual and inverted.
(c) virtual and upright.
(a) 10 m
(b) 5 m
(c) -5 m
An electromagnetic wave is traveling in the direction of x
axis. The electric field of the wave oscillates within the xy
plane. The amplitude of the electric field is 45 V/m.
What is the amplitude B0 of the magnetic field of the
(a) 3.2 T
(b) 0.02 mT
(c) 1.5 × 10-7 T
(a) parallel to the xz plane
(b) parallel to the yz plane
(c) parallel to the xy plane
What is the distance do from the object to the lens?
(a) do = 0.33 cm
(b) do = 10.00 cm
(c) do = 13.33 cm
(d) do = 30.00 cm
(e) do = 47.21 cm
The eyes of a myopic (nearsighted) patient in need of corrective lenses
are somewhat prolate so that the distance from the cornea to the
retina is greater than the focal length of the
combination of the cornea and relaxed lens, as shown in the figure.
As a result, parallel rays from a very distant object will focus 25
mm from the front of the eye, somewhat in front of the retina.
A myopic physicist can focus comfortably on objects that are 150 mm
from the front of his eye when the lens of his eye is relaxed. What is
the distance from the front of the physicistís eye to his retina?
(Assume the focal length of the combination of the cornea and relaxed
lens is 25 mm.)
(a) 30 mm
(b) 27 mm
(c) 31 mm
(a) +1.00 diopter
(b) +2.50 diopters
(c) -0.20 diopters
(d) -3.20 diopters
(e) -5.00 diopters
(a) producing a real image that is closer to the eye than the real object being
inspected with the aid of the magnifier.
(b) producing a virtual image that is farther from the eye than the real object
being inspected with the aid of the magnifier.
(c) reinverting the otherwise once-inverted image formed by the lens in order to
make inspection possible.
(a) The interference between the two rays of reflected light drawn in the figure
(b) The interference between the two rays of reflected light drawn in the figure
Laser light of wavelength λ = 550 nm in air
strikes the top surface of the upper sheet. The distance the light travels
inside the sheet with index of refraction n2 is 2d.
Note that n3 > n2. When the laser
beam is aimed as shown in the figure, the reflected light is seen to be
especially bright. Which value of d can produce a bright reflected
(a) d = 250 nm
(b) d = 375 nm
(c) d = 500 nm
(d) d = 183 nm
(e) d = 83 nm
Which one of these intensity patterns best illustrates the
illumination pattern that might be seen on the screen? Note the tick
mark that indicates the center of the screen.
When the microwave generator is turned off, how does the intensity of
sound registered by the audio microphone change?
(a) Sound at the microphone is louder.
(b) Sound at the microphone is unchanged.
(c) Sound at the microphone is softer.
What is the wavelength λ of the laser light?
(a) λ = 400 nm
(b) λ = 350 nm
(c) λ = 800 nm
(d) λ = 625 nm
(e) λ = 550 nm
An object with height h = 8 cm lies a distance d = 32 cm
before a diverging lens with focal length f = -25 cm.
What is the size of the image?
(a) 2.22 cm
(b) 3.51 cm
(c) 8.46 cm
(d) 14.2 cm
(e) 25.5 cm
(a) The image is real and on the left side of the lens.
(b) The image is inverted and virtual.
(c) The image is upright and reduced.
(d) The image is virtual and on the right side of the lens.
(e) The image is real and reduced.