Light Waves Single slit diffraction and double slit interferance

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Presentation transcript:

Light Waves Single slit diffraction and double slit interferance Chapter 29 A Light Waves Single slit diffraction and double slit interferance

According to Huygens’ principle, every point on a wave is a diffraction source. is the superposition of every other wave. is perpendicular to the rays of the waves. behaves as a source of new waves. Answer: D

According to Huygens’ principle, every point on a wave is a diffraction source. is the superposition of every other wave. is perpendicular to the rays of the waves. behaves as a source of new waves. Answer: D

Diffraction is more pronounced for waves passing through small openings. through large openings. from one medium to another. from shadow regions. Answer: A

Diffraction is more pronounced for waves passing through small openings. through large openings. from one medium to another. from shadow regions. Answer: A

Diffraction can occur for sound. ultrasound. light. waves of all kinds. Answer: D

Diffraction can occur for sound. ultrasound. light. waves of all kinds. Answer: D

For viewing tiny objects in an optical microscope, diffraction is helpful. a hindrance. Sometimes either of these. not a factor. Answer: B

For viewing tiny objects in an optical microscope, diffraction is helpful. a hindrance. Sometimes either of these. not a factor. Answer: B

A diffraction grating relies on light interference. variations in amplitude. variations in brightness. being composed of photons. Answer: A

A diffraction grating relies on light interference. variations in amplitude. variations in brightness. being composed of photons. Answer: A

When light undergoes interference, it can sometimes increase in amplitude. cancel completely. Both of these. None of these. Answer: C

When light undergoes interference, it can sometimes increase in amplitude. cancel completely. Both of these. None of these. Answer: C Explanation: Light can build in amplitude by constructive interference and can cancel by destructive interference.

When light undergoes interference, the quantity most affected is its frequency. amplitude. wave nature. phase. Answer: B

When light undergoes interference, the quantity most affected is its frequency. amplitude. wave nature. phase. Answer: B

Interference can be exhibited by sound waves. light waves. standing waves. all waves. Answer: D

Interference can be exhibited by sound waves. light waves. standing waves. all waves. Answer: D

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