Two Identical Light Waves, a and B, Are Emitted from Different

question 7

Multiple Choice

Two identical light waves, A and B, are emitted from different sources and meet at a point P. The distance from the source of A to the point P is L_A; and the source of B is a distance L_B from P. Which one of the following statements is necessarily true concerning the interference of the two waves?

• A)A and B will interfere constructively because their amplitudes are the same.
• B)A and B will interfere constructively if L_A = L_B.
• C)A and B will interfere destructively if L_A - L_B = m\(\lambda\) where m = 0, 1, 2, 3, ...
• D)A and B will interfere destructively if L_A is not equal to L_B.
• E)A and B will interfere constructively because their wavelengths are the same.

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Definitions:

Pharynx

The membrane-lined cavity behind the nose and mouth, connecting them to the esophagus.

Respiration

The process of inhaling oxygen and exhaling carbon dioxide, essential for life.

Digestion

The breakdown of food into smaller components that can be absorbed and assimilated into the body.

Vomiting

The forceful expulsion of stomach contents through the mouth.