Diffraction of Waves
Physics ⇒ Waves and Sound
Diffraction of Waves starts at 10 and continues till grade 12.
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See sample questions for grade 10
A laser with a wavelength of 600 nm passes through a slit 0.2 mm wide. Calculate the angle to the first minimum in the diffraction pattern.
A slit of width 0.1 mm is illuminated by light of wavelength 500 nm. Calculate the angle to the first minimum.
A sound wave with a wavelength of 1.5 m passes through a doorway 1 m wide. Will significant diffraction occur?
A water wave with a wavelength of 0.5 m passes through a gap of 2 m. Will the wave experience significant diffraction?
Describe how the diffraction of sound waves affects the design of concert halls.
Describe how the diffraction pattern changes as the slit width decreases for a fixed wavelength.
Describe what happens to a water wave as it passes through a gap that is about the same width as its wavelength.
Explain why radio waves can diffract around buildings more easily than visible light.
Explain why sound waves can be heard around corners but light waves cannot.
Explain why the edges of shadows are not perfectly sharp.
What is diffraction of waves?
