. A student puts his pencil into an empty trough and observes the pencil from the position indicated in the diagram alongside in Fig


A student puts his pencil into an empty trough and observes the pencil from the position indicated in the diagram alongside in Fig.

diagram alongside

(i) What change will be observed in the appearance of the pencil when water is poured into the trough?

(ii) Name the phenomenon which accounts for the above started observation.

(iii) Complete the diagram showing how the student’s eye sees the pencil through water.

 

Best Answer

(i)Part of the pencil which is immersed in water will look short and raised up.

(ii)The phenomena which is responsible for the above observation is refraction of light.

(iii)The required figure is

immersed in water

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