JEE Question Paper 2001.
Joint Entrance Examination (JEE) Admission to Undergraduate Engineering Programs at NITs, IIITs, Has been Conducted By IITs For the admission in Engineering Courses This JEE 2001 examination is the procedure to get the admission in MBA
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JEE Question Paper 2001
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Reduction of the metal Centre Ifl aqueous permanganate ion involves
(A) 3 electrons in neutral medium (B) 5 electrons in neutral medium
(C) 3 electrons In alkaline medium (D) 5 electrons in acidic medium
In acidic medium
MnO +8W ÷5e )Mn2 +4H20
In neutral medium
N’InO + ZHZO + 3e Mn02 + 40W
Hence, number of electron loose in acidic and neuiral medium 5 and 3 electrons respectively.
The density of a solid ball is to be determined in an experiment. The diameter of the ball is measured with a screw gauge, whose pitch is 0.5 mm and there are 50 divisions on the circular scale. The reading on the main scale is 2.5 mm and that on the circular scale Is 20 divisIons. If the measured mass of he ball has a relative error of 2 %. the relative percentage error in the density is
(A) 0.9 % (B) 2.4 %
A wooden block performs SHM on a frictionless surface
with frequency. V0. The block carries a charge +Q on its surface. If now a uniform electric field E is switched-on as shown, then the SHM of the block will be
(A) of the same frequency and with shifted mean position. (B) of the same frequency and with the same mean position (C) of changed frequency and with shifted mean position. (D) of changed frequency awl with the sanw mean position.