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Practice interference MCQs, physics MCQs for online test prep. Superposition of waves quiz has multiple choice questions (MCQ), interference quiz questions and answers as for destructive interference, path difference is, answer key with choices as odd number of half wavelengths, even number of half wavelengths, whole number of wavelengths and even whole number of wavelengths for competitive exam prep. Free study guide is to learn interference quiz online with MCQs to practice test questions with answers.

MCQ. For destructive interference, path difference is

1. odd number of half wavelengths
2. even number of half wavelengths
3. whole number of wavelengths
4. even whole number of wavelengths

A

MCQ. Constructive interference happens when two waves are

1. out of phase
2. zero amplitude
3. in phase
4. in front

C

MCQ. Two waves with phase difference 180° have resultant of amplitude

1. one
2. zero
3. same as single wave
4. doubles single wave

B

MCQ. If two waves are in phase and have same amplitude then resultant wave has

1. half of amplitude of single wave
2. same amplitude as single wave
3. twice of amplitude of single wave
4. thrice of amplitude of single wave

C

MCQ. Extra distance travelled by one of waves compared with other is called

1. path
2. displacement
3. phase difference
4. path difference

D