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Multiple Choice Question withOnly One Choice Correct
A hollow metal sphere of radius 5 cm is charged such that the potential on its surface to 10 V. The potential at the centre of the sphere is
(a) zero
(b) 10 V
(c) the same as that at a point 5 cm away from the surface
(d) the same as that at a point 25 cm away from the surface

Chemistry

True or False :
The carbon-carbon triple bond in acetylene has a bond length of 121 pm.

Mathematics

An unbiased cubical die is rolled until 1 appears. The probability that an even numbers tosses is needed is

(a)	1/6	(b)	5/11
(c)	6/11	(d)	5/6

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