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IGCSE A Level Physics Practice Tests

IGCSE A Level Physics Online Tests

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The MCQ: Effect of diffraction is greatest if waves pass through a gap with width equal to; "Diffraction of Waves" App Download (Free) with answers frequency, wavelength, amplitude and wavefront to learn online classes courses. Study diffraction of waves quiz questions, download Google eBook (Free Sample) for 2 year online degrees.

## Diffraction of Waves MCQs: Questions and Answers

MCQ 1: Effect of diffraction is greatest if waves pass through a gap with width equal to

1. frequency
2. wavelength
3. amplitude
4. wavefront

MCQ 2: Visible light has wavelength of

1. 5 × 10-7 m
2. 3 × 108 m
3. 6 × 10³ m
4. 4 × 104 m

MCQ 3: For listening radio in cars, external radio aerials are used because

1. radio waves have shorter wavelength
2. radio waves have longer wavelength
3. radio waves cannot pass through window
4. radio waves require a medium to propagate

MCQ 4: Spreading of wave as it passes through a gap or around an edge is called

1. reflection
2. refraction
3. diffraction
4. superposition

MCQ 5: Microwaves have wavelength of about

1. 10 cm
2. 20 cm
3. 30 cm
4. 40 cm

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