underneath a microscope with can be moved along a vertical scale. The microscope is focused

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A beaker containing liquid is placed on a table, underneath a microscope with can be moved along a vertical scale. The microscope is focused, through the liquid into a mark on the table when the reading on the scale is a. it is next focused on the upper surface of the liquid and the reading is b. More liquid is added and the observations are repeated. The corresponding readings are c and d. The refractive index of the liquid is
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Aug
A beaker containing liquid is placed on a table, underneath a microscope with can be moved along a vertical scale. The microscope is focused, through the liquid into a mark on the table when the reading on the scale is a. it is next focused on the upper surface of the liquid and the reading [...]
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Tags: A beaker containing liquid is placed on a table , An object is placed at a distance of 20cm from a equi-concave lens of focal length 30cm , find the position and nature of the image. , Light of wavelengthlambda = 500 nm falls on two narrow slits placed a distance d = 50 xx 10^-4 cm apart , underneath a microscope with can be moved along a vertical scale. The microscope is focused , whose one surface is silvered. If the radius of curvature of the silvered surface is 60cm ,