List of top Questions asked in JEE Advanced

The product of n positive numbers is unity, then their sum is

Two identical straight wires are stretched so as to produce 6 beats/s when vibrating simultaneously. On changing the tension slightly in one of them, the beat frequency remains unchanged. Denoting by $T_1,T_2$ the higher and the lower initial tension in the strings, then it could be said that while making the above changes in tension

A uniform bar of length 6 a and mass 8 m lies on a smooth horizontal table. Two point masses m and 2m moving in the same horizontal plane with speed 2vand v respectively, strike the bar [as shown in the figure] and stick to the bar after collision. Denoting angular velocity (about the centre of mass), total energy and centre of mass velocity by $?$, E and $v_c$ respectively, we have after collision

The reagents, $NH_4Cl$ and aqueous $NH_3$ will precipitate

There is no S- S bond in

According to kinetic theory of gases, for a diatomic molecule

1 -chlorobutane on reaction with alcoholic potash gives

The linear structure assumed by

The density of neon will be minimum at

When an ideal diatomic gas is heated at constant pressure the fraction of the heat energy supplied which increases the internal energy of the gas is

A uniform cylinder of length L and mass M having cross-sectional area A is suspended, with its length vertical, from a fixed point by a massless spring, such that it is half-submerged in a liquid of density p at equilibrium position. When the cylinder is given a small downward push and released it starts oscillating vertically with a small amplitude. If the force constant of the spring is k, the frequency of oscillation of the cylinder is

A thin prism $P_1$ with angle $4^\circ$ and made from glass of refractive index 1.54 is combined with another thin prism $P_2$ made from glass of refractive index 1.72 to produce dispersion without deviation. The angle of the prism $P_2$ is

When zeolite, which is hydrated sodium aluminium silicate, is treated with hard water, the sodium ions are exchanged with

Chlorination of toluene in the presence of light and heat followed by treatment with aqueous NaOH gives

The rate of diffusion of methane is twice that of X. The molecular mass of X is

Aryl halides are less reactive towards nucleophilic substitution reaction as compared to alkyl halide due to

Amongst the following, the most basic compound is

A wave is represented by the equation ; $\, \, \, \, \, y=A \sin (10 \pi x+15 \pi l+ \pi /3) $ where, x is in metre and t is in second. The expression represents

A particle of mass m is projected with a velocity v making an angle of 45$^{\circ}$ with the horizontal. The magnitude of the angular momentum of the projectile about the point of projection when the particle is at its maximum height h is

Amongst the elements with following electronic configurations, which one may have the highest ionisation energy?

An astronomical telescope has an angular magnification of magnitude 5 for far objects. The separation between the objective and the eyepiece is 36 cm and the final image is formed at infinity. The focal length $f_o$ of the objective and the focal length $f_e$ of the eyepiece are

A conducting square loop of side L and resistance R moves in its plane with a uniform velocity v perpendicular to one of its sides. A magnetic induction B, constant in time and space, pointing perpendicular to and into the plane of the loop exists everywhere.The current induced in the loop is

Nitrogen (I) oxide is produced by

The ground state electronic configuration of chromium is

Which one of the following is the smallest in size?