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Physics

Multiple Choice Question with Only One Choice Correct
Two point charges +4q and +q are placed 30 cm apart. At what point on the line joining them is the electric field zero?
(a) 15 cm from charge 4q
(b) 20 cm from charge 4q
(c) 7.5 cm from charge q
(d) 5 cm from charge q

Chemistry

True or False
All the Al-Cl bonds in Al₂Cl₆ are equivalent.

Mathematics

Column Matching
If 0 < x < 2

(i)	sin x + sin 2x + sin 3x	(a)	3
	= cos x + cos 2x + cos 3x
(ii)	sin x + sin 2x + sin 3x = 0	(b)	6
(iii)	sin² x - cos 2x = 2 - sin 2x	(c)	4

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