Diffraction of Waves
Physics ⇒ Waves and Sound
Diffraction of Waves starts at 10 and continues till grade 12.
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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.
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?
Which of the following best describes when diffraction is most noticeable? (1) When the wavelength is much smaller than the obstacle (2) When the wavelength is much larger than the obstacle (3) When the wavelength is about the same size as the obstacle (4) When there is no obstacle
Which of the following best explains why diffraction is less noticeable for light than for sound? (1) Light travels faster (2) Light has a much shorter wavelength (3) Sound is a longitudinal wave (4) Light is a transverse wave
Which of the following is a real-life example of diffraction? (1) Echoes in a canyon (2) The spreading of sound from a loudspeaker (3) The reflection of light from a mirror (4) The refraction of light in water
Which of the following is NOT a factor that affects the amount of diffraction? (1) Wavelength (2) Size of the gap (3) Speed of the wave (4) Frequency of the wave
Fill in the blank: Diffraction is a phenomenon that demonstrates the ________ nature of waves.
Fill in the blank: Diffraction is a property of ________ motion.
Fill in the blank: Diffraction is most significant when the size of the obstacle or gap is ________ to the wavelength.
Fill in the blank: The amount of diffraction increases as the ________ of the wave increases relative to the size of the opening.
True or False: Diffraction can be used to measure the wavelength of light.
True or False: Diffraction can cause the edges of shadows to appear blurry.
True or False: Diffraction can occur with all types of waves, including sound, light, and water waves.
True or False: Diffraction can only be observed in a laboratory setting.
