CUET Preparation Today
A bubble in glass slab (µ = 1.5) when viewed from one side appears at 5 cm and 2 cm from otherside, then the thickness of the glass slab is: |
2.5 cm 7.5 cm 10.5 cm 17.5 cm |
10.5 cm |
Real depth = $\mu$ \times apparent depth $ \text{Real depth} = 1.5\times (5+2) cm = 10.5 cm$ |
