What we plant in the soil of contemplation we shall reap in the harvest of action.— Meister Eckhart

Experimental Skills — quick quiz

5 real JEE Main questions on Experimental Skills. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.

Question 1 of 5

HARD

In a travelling microscope experiment to determine the refractive index of water, a microscope is focused on a mark at the bottom of a beaker. The reading is 8.50 cm. When water is poured to a depth such that the microscope reading becomes 14.20 cm for sharp focus on the same mark, and the actual depth of water is measured as 7.60 cm, what is the refractive index of water?