A mark is made on the bottom of beaker and a microscope is focussed on it. The microscope is raised through `1.5 cm`. To what height water must be poured into the beaker to bring the mark again into focus ? Given that `mu` for water is `4//3`.

A mark is made at the bottom of a beaker and a microscope is focussed on it.the microscope is then raised through 0.015 m.To what height water must be poured into the beaker to bring the mark again into focus?Given a^mu_w = 4//3 .

A microscope is focussed on a coin lying at the bottom of a beaker. The microscope is now raised up by 1 cm . To what depth should the water be poured into the beaker so that coin is again in focus ? (Refration index of water is 4//3 )

A microscope is focussed on a coin lying at the bottom of a beaker. The microscope is now raised up by 1 cm . To what depth should the water be poured into the beaker so that coin is again in focus ? (Refration index of water is 4//3 )

A mark at the bottom of a bekar is focussed by a microscope .When water is poured in the beaker up to a height of 16 cm,the microscope has to be raised through a distance of 4 cm in order to bring the mark to focus again .Calculate the refractive index of water.

To determine the refractive index of a liquid experimentally, a mark is made on the beaker and a microscope was focussed on it, giving a reading of 3.42 cm. On pouring liquid till a height 2.68 cm inside the beaker, the reading of refocussed microscope is 3.38 cm. Calculate the refractive index of the liquid.

There is a mark at the base of an empty beaker. The mark is focussed with the help of a microscope from above. If turpentine oil of 4 cm height is poured in the beaker, the microscope is to raised by 1.28 cm upwards, to focus the mark. Determine the refractive index of the turpentine oil.