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Multiple Choice Question with Only One Choice Correct
Infinite number of masses, each of mass m, are placed along a straight lline at distances of r, 2r, 4r, 8r, etc. from a reference point O. The gravitational field intensity at point O will be

(a)		(b)
(c)		(d)

Chemistry

Fill in the Blank :
The number of neutrons in the parent nucleus which gives ¹⁴ N on beta emission is ........ .

Mathematics

Show that 2 sin x + tan x

3x, where 0

x <

/2.

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