11.Find the refractive index of the liquid if a ray of light strikes surface AB normally and then comes out from face AC at grazing emergence.[aμg = 3/2]
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12.Define the angular magnification of an optical instrument.
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13.In Young’s double slit experiment, if white light is used in lieu of monochromatic light, what changes are observed in the interference pattern ?
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14.The refractive index of glass with respect to air is 3/2. Find the angle of polarisation.
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15.What is meant by remote sensing ?
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16.An electron is accelerated under a potential difference of 150 volts. What is De broglie’s wavelength ?
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