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Showing posts with label
NEET 1993
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Showing posts with label
NEET 1993
.
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11. A body starts from rest, what is the ratio of the distance travelled by the body during the 4th and 3rd seconds?
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8. A piece of copper and other of germanium are cooled from the room temperature to 80 K, then ?
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7. Diamond is very hard because ?
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24. A parallel beam of monochromatic light of wavelength 5000Å is incident normally on a single narrow slit of width 0.001 mm. The light is focussed by a convex lens on a screen placed in focal plane. The first minimum will be formed for the angle of diffraction equal to ?
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4. Interference was observed in interference chamber where air was present, now the chamber is evacuated, and if the same light is used, a careful observer will see ?
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10. Time taken by sunlight to pass through a window of thickness 4 mm whose refractive index is 3/2 is ?
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