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 ( neuw 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 ( neuw w = 4/3).