(a) In a single slit diffraction experiment, the width of the slit is made double the original width How does this affect the size and intensity of the central diffraction band (b) In what way is diffraction from each slit related to the interference pattern in a double slit experiment (c) When a tiny circular obstacle is placed in the path of light from a distant source, a bright spot is seen at the centre of the shadow of the obstacle Explain why (d) Two students are separated by a 7 m partition wall in a room 10 m high If both light and sound waves can bend around obstacles, how is it that the students are unable to see each other even though they can converse easily (e) Ray optics is based on the assumption that light travels in a straight line Diffraction effects (observed when light propagates through small apertures slits or around small obstacles) disprove this assumption Yet the ray optics assumption is so commonly used in understanding location and several other properties of images in optical instruments What is the justification

Question: (a) In a single slit diffraction experiment, the width of the slit is made double the original width. How does this affect the size and

(a) In a single slit diffraction experiment, the width of the slit is made double the original width. How does this affect the size and intensity of the central diffraction band?
(b) In what way is diffraction from each slit related to the interference pattern in a double-slit experiment?
(c) When a tiny circular obstacle is placed in the path of light from a distant source, a bright spot is seen at the centre of the shadow of the obstacle. Explain why?
(d) Two students are separated by a 7 m partition wall in a room 10 m high. If both light and sound waves can bend around obstacles, how is it that the students are unable to see each other even though they can converse easily.

(e) Ray optics is based on the assumption that light travels in a straight line. Diffraction effects (observed when light propagates through small apertures/slits or around small obstacles) disprove this assumption. Yet the ray optics assumption is so commonly used in understanding location and several other properties of images in optical instruments. What is the justification?

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a When the width of a single slit in a diffraction experiment is doubled the size of the central diffraction band also known as the central maximum decreases meaning it becomes narrower However the in... View full answer

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