JEE Main Online Question Paper

Will you please help me here to get the question paper of JEE Main so that I can solve it and prepare hard for it?

[shikha]

No worries I will get the JEE Main, question paper so that you can get idea from there exam paper

Here is the exam paper
Concrete mixture is made by mixing cement, stone and sand in a rotating cylindrical drum. If the drum rotates too fast, the ingredients remain stuck to the wall of the drum and proper mixing of ingredients does not take place. The maximum rotational speed of the drum in revolutions per minute(rpm) to ensure proper mixing is close to :
(Take the radius of the drum to be 1.25 m and its axle to be horizontal) :
(1) 0.4
(2) 1.3
(3) 8.0
(4) 27.0

In an engine the piston undergoes vertical simple harmonic motion with amplitude 7 cm. A washer rests on top of the piston and moves with it. The motor speed is slowly increased. The frequency of the piston at which the washer no longer stays in contact with the piston, is close to :
(1) 0.1 Hz
(2) 1.2 Hz
(3) 0.7 Hz
(4) 1.9 Hz

A toy-car, blowing its horn, is moving with a steady speed of 5 m/s, away from a wall. An observer, towards whom the toy car is moving, is able to hear 5 beats per second. If the velocity of sound in air is 340 m/s, the frequency of the horn of the toy car is close to :
(1) 680 Hz
(2) 510 Hz
(3) 340 Hz
(4) 170 Hz

Two stars are 10 light years away from the earth. They are seen through a telescope of objective diameter 30 cm. The wavelength of light is 600 nm. To see the stars just resolved by the telescope, the minimum distance between them should be (1 light year=9.46× 1015m) of the order of :
(1) 106 km
(2) 108 km
(3) 1011 km
(4) 1010 km




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