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	Column I		Column II
(a)	Light gathering capacity of telescope	(p)	Focal lengths of objective and eye-piece
(b)	Magnifying power of telescope	(q)	Diameter (aperture) of the objective
(c)	Sharpness of image	(r)	Dispersion of light by objective and eye-piece
(d)	Length of telescope	(s)	Spherical aberration

What is the current efficiency of an electrodeposition of copper metal in which 9.80 g of Cu is deposited by the passage of 3.0 A current for 10⁴ s?

For the equation 3x² + px + 3 = 0, p > 0, if one of the roots is square of the other, then p is equal to

(a)	1/3	(b)	1
(c)	3	(d)	2/3

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