An observer can see through a small hole on the side of the jar ( radius ) at a point of height of
. When the jar is filled with a liquid up to a height of
the same observer can see the edge at the bottom of the jar. If the R.I. of the liquid is
, where
is an integer the value of
is
Option: 1 5
Option: 2 46
Option: 3 158
Option: 4 96
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5 g of Na2SO4 was dissolved in x g of H2O. The change in freezing point was found to be 3.820C. If Na2SO4 is 81.5% ionised, the value of x (K
A capacitor is made of two square plates each of side 'a' making a very small angle
A solution of m-chloroaniline, m-chlorophenol and m-chlorobenzoic acid in ethyl acetate was extracted initially with a saturated solution of NaHCO3 to give fraction A. The leftover organic phase was extracted with d