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 11
A laser beam of wavelength 500 nm passes through a slit of width 0.25 mm. Calculate the angle to the first minimum.
A slit of width 0.1 mm is illuminated by light of wavelength 700 nm. Calculate the angle to the first minimum.
A slit of width 0.2 mm is illuminated by light of wavelength 400 nm. Calculate the angle to the first minimum.
A water wave passes through a gap in a barrier. If the gap is much wider than the wavelength, what will the wavefront look like after passing through?
Describe how the diffraction pattern changes if the wavelength of the incident wave is decreased while the slit width remains constant.
Describe the difference between diffraction and refraction.
Describe what happens to the diffraction pattern if the slit width is decreased while keeping the wavelength constant.
Explain why diffraction is not noticeable when light passes through a doorway, but is noticeable for sound.
Explain why radio waves can be received behind a hill, but visible light cannot.
Explain why sound waves can bend around corners more easily than light waves.
If the wavelength of a wave is doubled, what happens to the amount of diffraction when passing through the same opening?
What is diffraction of waves?
