NEET (UG) entrance exam Question Bank Solutions

Taking into account of the significant figures, what is the value of 9.99 m – 0.0099 m?

A uniform rectangular block of mass of 50 kg is hung horizontally with the help of three wires A, B and C each of length and area of 2m and 10mm² respectively as shown in the figure. The central wire is passing through the centre of gravity and is made of material of Young's modulus 7.5 x 10¹⁰ Nm⁻² and the other two wires A and C symmetrically placed on either side of the wire B are of Young's modulus 10¹¹ Nm⁻²  The tension in the wires A and B will be in the ratio of: 

The maximum and minimum tensions in the string whirling in a circle of radius 2.5 m with constant velocity are in the ratio 5 : 3. Then its velocity is

Light waves travel from optically rarer medium to optically denser medium. Its velocity decreases bec;ause of change in ______.

To study the helical surface of nucleic acid, the property of electromagnetic radiation generally used is ______.

Lenard observed photoelectric effect using

When a bus suddenly takes a tum, the passengers are thrown outwards because of

Force acting on a particle moving in a straight line varies with the velocity of the particle v as F = `K/v`, where K is a constant. The work done by this force in time t is

The kinetic energy of a body of mass 4 kg and momentum 6 Ns will be

Two particles of equal masses have velocity `vecv_1 = 2hati` m/s and `vecv_2 = 2hatj` m/s. The first particle has an acceleration `veca_1 = (3hati + 3hatj)` m/s² while the acceleration of the other particle is zero. The centre of mass of the two particles moves in a

Broadcasting antennas are generally ______.

What is the shape assumed by the surface when a non-wetting liquid is placed in a capillary tube? 

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

In insulated systems, the amount of external work done by the gas is proportional to: 

A cuboidal container having dimensions 2 m × 1.5 m × 0.5 m holds a mixture of 12 g of He, 36 g of Ar, and 20 g of Ne, If the container is maintained at 300 K, Find the pressure exerted by the mixture (given M_He = 4, M_Ar = 40, M_Ne = 20). 

Newton's first law of motion describes ______.

A conductor has a 14.4 × 10^-19 coulomb positive charge. The conductor has ______ 

(Charge on electron = 1.6 × 10^-19 coulomb)

What fraction of the energy drawn from the charging battery is stored in a capacitor?

A body starts from rest and is acted on by a constant force. The ratio of kinetic energy gained by it in the first five seconds to that gained in the next five-second is:

A wire placed along north south direction carries a current of 5A from south to north. Find the magnetic field due to a 1m piece of wire at a point 200 cm north east from the piece.