List of top Questions asked in JEE Main

The area bounded by y = min{sin x, cos x} and x-axis in -π ≤ x ≤ π interval is equal to (in sq. units):
Let A = [1, 2, 3, 4, 5], m be the number of relations such as 4x ≤ 5y XRY and n be the minimum number of elements to be added from A × A to make a symmetric relation. Then the value of n + m.
A=\(\begin{bmatrix}   \alpha & \alpha & \alpha \\   \beta & \alpha & -\beta \\   -\alpha & \alpha & \alpha  \end{bmatrix}\)B is formed by co-factor of A matrix, then find out determinant of AB.
If \(\frac{1}{(1+d)(1+2d)}+\frac{1}{(1+2d)(1+3d)}+...+\frac{1}{(1+9d)(1+10d)}=1,\) then the value of 50d is____. (d > 0)
Equal volume of 1 M HCI and 1 M H2SO4 neutralized by dil. NaOH and heat released is x and y kcal respectively, then which is correct?
Assertion: Kjeldahl method is not used for pyridine.
Reason: Nitrogen of pyridine does not change to ammonium sulphate under these conditions.
Which of the following orbitals has the highest energy?
The molarity of NaCl solution is 3 M. Calculate the morality of the solution. (Given density of the solution = 1.25 g/mL)
An electron and a proton has same de Broglie wavelength. If Ke and Kp are their respective kinetic energies, then
Angular momentum of an electron in an orbit of radius R of a hydrogen atom is directly proportional to
In a hydraulic lift force F is applied to balance 10 N load, diameter of effort arm is 14 cm and load arm is 1.4 cm. The F is equal to
An object is projected such that its horizontal range and maximum height are same, then angle of projection is
Three particles having different masses have the same momentum. Find the ratio of their kinetic energy. (m1 = 400 gm,m2 = 1.2 kg,m3 = 1.6 kg)
A physical quantity P depends on electric field (E) and permittivity of free space ( ε0 ) as  P ∝ E ε02, Find dimension of P
The dimension of latent heat is:
A screw gauge with a pitch of 1 mm and a circular scale with 100 divisions is used to measure the thickness of the aluminium sheet. Negative zero error of 0.05 mm is there. What is the thickness of the sheet when main scale reading is 4 mm and 60th division coincides with the main scale line
An ammeter consisting of 240 Ω galvanometer and 10 Ω shunt resistance is connected in circuit as shown. Reading of ammeter is
An ammeter consisting of 240 Ω galvanometer
Number of ambidentate nucleophiles among the following is:
CN-, SCN- NO2-, CH3COO-, C2042-, NH2-, SO42-
Five identical convex lenses are placed one after the other in close contact. The power of this arrangement is 25 D. Then, the power of one such lens is
A cubical arrangement of 12 resistors each having resistance R is shown. Find I.
A cubical arrangement of 12 resistors each having resistance R is shown. Find I.
On a given rough incline plane, a solid sphere and a hollow cylinder having the same radius are rolled one by one, with the same speed. Ratio of heights attained by solid sphere and hollow cylinder is
A wooden block is initially at rest on a smooth surface. Now a horizontal force is applied on the block which increases linearly with time. The acceleration- time (a - t) graph for the block would be
Which graph correctly represents the photo current (i) vs stopping potential (Vs) for the same frequency but different intensity? $(here, I_1 › I_2)$
An electron is projected along the axis of solenoid which carries constant current i, the trajectory of electron shall be
Consider the network shown:

The equivalent resistance of the network is