NEET (UG) entrance exam Question Bank Solutions

Walking of a person on the road is an example of

The ratio of adiabatic bulk modulus and isothermal bulk modulus of gas is `("where"  γ = "C"_"P"/"C"_"V")`

Along a streamline, 

When a beam of plane polarised light is incident on an analyser, the intensity of light transmitted from analyser varies directly as square of cosine of angle between the planes of transmission of analyser and polariser is given by ______.

If E and p are the energy and the momentum of a photon respectively, then on reducing the wavelength of photon

In the following atoms and molecules for the transition from n = 2 to n = 1, the spectral line of minimum wavelength will be produced by

A 1.5 kg block is initially at rest on a horizontal frictionless surface when a horizontal force in the positive direction of X-axis is applied to the block. The force is given by `vecF = (4 - x^2) hati` N, where x is in metre and the initial position of the block is x = 0. The maximum kinetic energy of the block between x = 0 and x = 2.0 m is

The device which uses centre-tapped secondary of the transformer is

A man standing on a tum-table is rotating at a certain angular frequency with his arms outstretched. He suddenly folds his arms. If his moment of inertia with folded arms is 75% of that with outstretched arms, his rotational kinetic energy will

The process in which frequency of carrier wave changes with the instantaneous value of the modulated signal is ______.

The force of attraction between two unit point masses separated by a unit distance is numerically equal to

Two particles P and Q describe simple harmonic motions of same amplitude a, frequency v along the same straight line. The maximum distance between the two particles is a`sqrt(2)`. The initial phase difference between the particles is

Two wires of same material are vibrating under the same tension. If the first overtone of first wire is equal to the second overtone of second wire and radius of first wire is twice the radius of the second then the ratio of length of first wire to second wire is

When heat is given to a gas in an isothermal change, the result will be ______. 

Work energy theorem is valid in the presence of ______.

A moving charge will gain kinetic energy due to the application of ______.

Calculate the angular momentum of a particle of mass 5 mg revolving about a circle of radius 60 cm with a speed of 2 km/s. 

The drift velocity of a free electron inside a conductor is ______

Which one is not an application of eddy current?

A planet has same density and same acceleration due to gravity as of earth and universal gravitational constant G is twice of earth. The ratio of their radius: