A laser beam strikes a plane mirror's reflecting surface with an angle of incidence of 43°. What is the angle between the incident ray and the reflected ray?
A) 43°
B) 86°
C) 45°
D) 90°
E) 0°
B
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If the frequency of the AC voltage across an inductor is doubled, the inductive reactance of that inductor
A) decreases to one-half its original value. B) increases to twice its original value. C) decreases to one-fourth its original value. D) increases to 4 times its original value.
If oxygen were used as nuclear fuel, it would be best
A) fused. B) fissioned. C) either of these
A coil with a self-inductance of 6.0 H has a constant current of 2.0 A flowing through it for 2.0 s. What is the emf induced in this coil?
A) 6.0 V B) 12 V C) 0.0 V D) 4.0 V E) 8.0 V
The lithospheric plates are believed to be put into motion by the driving force of ______________ cells in the asthenosphere
Fill in the blank(s) with correct word