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1.
For light diverging from a point source
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Consider the diffraction pattern for a small pinhole. As the size of the hole is increased
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In a Young's double slit experiment, the source is white light. One of the holes is covered by a red filter and another by a blue filter. In this case
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Consider sunlight incident on a slit of width 104 A. The image seen through the slit shall
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The velocity of light in air is 3 * 108 ms-1 and that in water is 2.2 * 108 ms
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An optically active compound
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To observe diffraction, the size of the obstacle
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The angular resolution of a 10 cm diameter telescope at a wavelength of 5000 A is of the order of