As per your requirement I am here giving you old question paper of IIT JEE exam.

Question paper:


A student measured the length of a rod and wrote it as 3.50 cm. Which instrument did he use to measure it?
(1) A screw gauge having 100 divisions in the circular scale and pitch as 1 mm.
(2) A screw gauge having 50 divisions in the circular scale and pitch as 1 mm.
(3) A meter scale.
(4) A vernier calliper where the 10 divisions in vernier scale matches with 9 division in main scale and
main scale has 10 divisions in 1 cm.

A particle moves with simple harmonic motion in a straight line. In first s, after starting from rest it travels
a distance a, and in next s it travels 2a, in same direction, then :
(1) amplitude of motion is 4a (2) time period of oscillations is 6
(3) amplitude of motion is 3a (4) time period of oscillations is 8

A green light is incident from the water to the air – water interface at the critical angle . Select the
correct statement
(1) The spectrum of visible light whose frequency is more than that of green light will come out to the air
medium.
(2) The entire spectrum of visible light will come out of the water at various angles to the normal.
(3) The entire spectrum of visible light will come out of the water at an angle of 900 to the normal.
(4) The spectrum of visible light whose frequency is less than that of green light will come out to the air
medium.

Two beams, A and B, of plane polarized light with mutually perpendicular planes of polarization are seen
through a polaroid. From the position when the beam A has maximum intensity (and beam B has zero
intensity), a rotation of Polaroid through 300 makes the two beams appear equally bright. If the initial
intensities of the two beams are IA and IB respectively, then IA/IB equals :
(1) 1 (2) 1/3
(3) 3 (4) 3/2


Which one of the following properties is not shown by NO?
(1) It combines with oxygen to form nitrogen dioxide
(2) It’s bond order is 2.5
(3) It is diamagnetic in gaseous state
(4) It is a neutral oxide

The metal that cannot be obtained by electrolysis of an aqueous solution of its salts is:
(1) Cu (2) Cr
(3) Ag (4) Ca

Which one of the following bases is not present in DNA?
(1) Cytosine (2) Thymine
(3) Quinoline (4) Adenine

Question paper of IIT JEE exam






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