A bird ‘B’ in air is diving vertically downwards over a water tank with speed 5 cm/s. Base of the tank is silvered. A fish ‘F’ in the tank is rising vertically upwards along the same line with speed 2 cm/s. Water level is lowered at the rate of 2 cm/s. Take μ=43 Column – I Column – IIA)Speed of image of fish as seen by the bird directly in cm/sp)4B)Speed of image of fish formed after reflection in the mirror as Seen by the bird in cm/s q)8C)Speed of image of bird as seen by the fish looking upwards in cm/sr)3D)Speed of image of bird as seen by the fish looking downwards in cm/ss)6 t)9

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A bird ‘B’ in air is diving vertically downwards over a water tank with speed 5 cm/s. Base of the tank is silvered. A fish ‘F’ in the tank is rising vertically upwards along the same line with speed 2 cm/s. Water level is lowered at the rate of 2 cm/s. Take $μ = \frac{4}{3}$

	Column – I		Column – II
A)	Speed of image of fish as seen by the bird directly in cm/s	p)	4
B)	Speed of image of fish formed after reflection in the mirror as Seen by the bird in cm/s	q)	8
C)	Speed of image of bird as seen by the fish looking upwards in cm/s	r)	3
D)	Speed of image of bird as seen by the fish looking downwards in cm/s	s)	6
		t)	9