I want to do practice of IIT JEE so please provide me paper to prepare that I can opt good marks please help me?

[Vishal Kotkar]

As you want question paper of IIT JEE so here I am providing you paper of year 2012 that will help you surely which is in pdf ; you can freely download.

Some of contain from pdf file described here which is as follows:-

A mixture of 2 moles of helium gas (atomic mass = 4 amu) and 1 mole of argon gas (atomic mass = 40 amu) is kept at 300 K in a container. The ratio of the r m s speeds rmsrmsv(helium)v(argon) is
(A) 0.32
(B) 0.45
(C) 2.24
(D) 3.16 3. (D) vrms = 3RTM HermsArrms(v)(v) = ArHeMM = 404= 10 HermsArrms(v)(v) = 3.16 mg qE x y 45mg qE V


A small block is connected to one end of a massless spring of un-stretched length 4.9 m. The other end of the spring (see the figure) is fixed. The system lies on a horizontal frictionless surface. The block is stretched by 0.2 m and released from rest at t = 0. It then executes simple harmonic motion with angular frequency 3 rad/s. Simultaneously at t = 0, a small pebble is projected with speed v from point P at an angle of 45º as shown in the figure. Point P is at a horizontal distance of 10 m from O. If the pebble hits the block at t = 1 s, the value of v is (take g = 10 m/s2)

IIT JEE questions paper