question_answer

A cylindrical bucket of depth 60 cm is partly filled with a liquid of refractive index 1.5 and with oil (on top of liquid) of refractive index 2. It appears that the volume of air, volume of liquid and volume of oil are equal, to an observer who views from top of the bucket. The apparent depth of the bucket as seen by the observer given as \[\alpha \]cm. Fill \[\left( \frac{\alpha }{5} \right)\]in OMR, sheet.

Answer:

8.00