What is the photoelectric effect?
a. The mechanism by which a camera works.
b. The effect seen by bombarding a metal surface with an electron beam.
c. The production of light by an electric discharge through a gas.
d. The emission of electrons from a clean metal surface when light shines on the surface.
e. The fact that electrons bounce off any surface when light shines on it.
d
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_________is the ratio of the resolution possible with the human eye divided by the resolution with a microscope.
Fill in the blank(s) with the appropriate word(s).
Sarah traveled by automobile from Ft
Lauderdale to Naples, Florida, a distance of 120 miles, at an average speed of 60 mi/h. The time required was a) 5000 hours. b) 2.0 hours. c) 0.50 hours. d) 2.5 hours.
A CD has a diameter of 12.0 cm. If the CD starts from rest and has a constant angular acceleration of 2.0 then the tangential acceleration of a point 3.0 cm from the center of the CD after 3.0 sec is
A. 0.40
B. 0.25
C. 0.10
D. 0.06
E. 0.03
Answer the following statement(s) true (T) or false (F)
1. Consider an infinite solenoid. Imagine placing a mirror so that mirror’s plane contains the solenoid’s central axis. Such a mirror would satisfy the conditions of the mirror rule. 2. An infinite solenoid’s magnetic field is uniform everywhere in the solenoid’s hollow interior.