881. A dynamo is often set to generate electricity it actually acts as a source of:
A. Charge
B. EMF
C. Electrons
D. Magnetism
882. The following factors influence how long it takes for a circuit to establish a current:
A. The magnitude of the current
B. The applied potential difference
C. Its Inductance only
D. Its Inductance and Its resistance
883. Which of the following is not electromagnetic in nature?
A. Infrared ray
B. Ultraviolet rays
C. Radar waves
D. Sound waves
884. Beats are the result of:
A. Diffraction
B. Constructive interference
C. Destructive Interference
D. Constructive and destructive interference
885. Longitudinal waves do not exhibit:
A. Refraction
B. Reflection
C. Diffraction
D. Polarization
886. The following people carried out an important experiment that led to the theory of relativity:
A. Michelson and Morley
B. Albert Einstein
C. Pavel Cerenkov
D. Samuel Ether
887. The Ratio Between the energy dissipated in some process and the heat that appears as a result is the:
A. Triple Point
B. Specific Heat
C. Kilocalorie
D. Mechanical equivalent of heat
888. The smallest sub-division of a compound that exhibits its characteristics properties is called:
A. An elementary particle
B. An atom
C. A Molecule
D. An element
889. The Energy of the molecular motion appears in form of:
A. Fiction
B. Heat
C. Temperature
D. Potential Energy
890. The physics underlying the operation of a refrigerator most closely resembles the physics underlying:
A. A heat Engine
B. The melting of ice
C. The freezing of water
D. The Evaporation of water
Admin