Question says small bubble is trapped inside a cube of length 24‌cm. If apparent distance of bubble is 12‌cm and 4‌cm from one and other side and find x= ?
‌‌ Using ‌‌
‌ Apparent depth ‌
‌ Realdepth ‌
=‌
µ2
µ1
‌µ2=1‌‌µ1‌ is glass ‌ ‌µ1=µ‌‌µ2‌ is air ‌ ‌‌