JEE Main questions
34495 published questions with worked solutions.
- Given below are two statements: Statement I: In a Young's double slit experiment, the angular separation of fringes will increase...
- A battery with EMF E and internal resistance r is connected across a resistance R. The power consumption in R will be maximum...
- Keeping the significant figures in view, the sum of the physical quantities 52.01 m, 153.2 m and 0.123 m is:
- A spherical body of radius r and density falls freely through a viscous liquid having density and viscosity and attains a...
- Surface tension of two liquids (having same densities), T_1 and T_2, are measured using capillary rise method utilizing two tubes...
- A body of mass 2 kg is moving along x-direction such that its displacement as function of time is given by x(t) = t^2 + t + m,...
- An electromagnetic wave of frequency 100 MHz propagates through a medium of conductivity, = 10 mho/m. The ratio of maximum...
- The terminal velocity of a metallic ball of radius 6 mm in a viscous fluid is 20 cm/s. The terminal velocity of another ball of...
- A particle having electric charge 3 10^ -19 C and mass 6 10^ -27 kg is accelerated by applying an electric potential of 1.21 V....
- In a Young's double slit experiment set up, the two slits are kept 0.4 mm apart and screen is placed at 1 m from slits. If a thin...
- A diatomic gas ( = 1.4) does 100 J of work when it is expanded isobarically. Then the heat given to the gas _____ J.
- Aqueous HCl reacts with MnO_2(s) to form MnCl_2(aq), Cl_2(g) and H_2O(l). What is the weight (in g) of Cl_2 liberated when 8.7 g...
- By usual analysis, 1.00 g of compound (X) gave 1.79 g of magnesium pyrophosphate. The percentage of phosphorus in compound (X)...
- Consider the following data: _fH^ ( methane, g ) = -X kJ mol^ -1 Enthalpy of sublimation of graphite = Y kJ mol^ -1 Dissociation...
- Decomposition of A is a first order reaction at T(K) and is given by A(g) B(g) + C(g). In a closed 1 L vessel, 1 bar A(g) is...
- Given below are two statements: Statement-I: The correct order in terms of atomic/ionic radii is Al > Mg > Mg^ 2+ > Al^ 3+ ....
- The correct statements are: A. Activation energy for enzyme catalysed hydrolysis of sucrose is lower than that of acid catalysed...Not in JEE Main or NEET syllabus
- The correct order of the rate of the reaction for the following reaction with respect to nucleophiles is: CH_3Br + Nu^ CH_3Nu +...
- Given below are two statements: Statement I: Crystal Field Stabilization Energy (CFSE) of [Cr(H_2O)_6]^ 2+ is greater than that...
- The correct increasing order of C – H(A), C – O(B), C = O(C) and C ≡ N(D) bonds in terms of covalent bond length is: