A jellyfish is floating in a water-filled aquarium 1.14 m behind a flat pane of

Question

A jellyfish is floating in a water-filled aquarium 1.14 m behind a flat pane of glass 4.00 cm thick and having an index of refraction of1.59. (a) Where is the image of the jellyfishlocated? (Use a negative number to indicate the image is in thetank.)
1 m

(b) Repeat the problem when the glass is so thin that its thicknesscan be neglected. (Use a negative number to indicate the image isin the tank.)
2 m (a) Where is the image of the jellyfishlocated? (Use a negative number to indicate the image is in thetank.)
1 m

(b) Repeat the problem when the glass is so thin that its thicknesscan be neglected. (Use a negative number to indicate the image isin the tank.)
2 m

Explanation / Answer

Apparent depth is given by =apparent depth/real depth For the glass and water medium we have as, water/glass=apparent depth/1.14 1.33/1.59=apparent depth/1.14 apparent depth=1.33/1.59*1.14 a=0.95358m For the glass and air medium we have as, Due to the glass of thickness t the shift of the imageproduced as, d=t(1-1/)=0.04(1-1/1.59)=0.01484276m The resultant image as formed there, x=0.95358+0.01458276=0.96842276m Similarly we can do it for next then. Hence we get by it.

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