A Level Courses

IGCSE A Level Physics Practice Tests

IGCSE A Level Physics Online Tests

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Apps:

The Interference Multiple Choice Questions (MCQ Quiz) with Answers PDF, Interference MCQ PDF e-Book download to practice IGCSE A Level Physics Tests. Study Superposition of Waves Multiple Choice Questions and Answers (MCQs), Interference quiz answers PDF to study online training courses. The Interference MCQ App Download: Free learning app for interference, young double slit experiment, diffraction of waves test prep for 2 year online degrees.

The MCQ: Constructive interference happens when two waves are; "Interference" App Download (Free) with answers: Out of phase; Zero amplitude; In phase; In front; to study online training courses. Practice Interference Quiz Questions, download Apple eBook (Free Sample) for free online classes.

## Interference MCQs: Questions and Answers

MCQ 1:

For destructive interference, the 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
MCQ 2:

Constructive interference happens when two waves are

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

Two waves with phase difference 180° have resultant of amplitude

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

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
MCQ 5:

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

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