The Principle of Superposition States

question 81

Multiple Choice

The principle of superposition states:

• A)The effect observed at each point of a wave made up of two or more waves is the sum of the effects that the individual waves would produce at that point.
• B)Huygens' wavelets cannot be allowed to extend across regions where the phase velocity of the wave changes abruptly.
• C)Sources of radiation whose phase angles are maintained at constant differences are said to be coherent.
• D)A characteristic phenomenon of wave propagation is the tendency of a wave to expand around and behind any obstacles it chances to encounter.
• E)A good source of waves at a particular frequency is a good detector of waves at the same frequency.