List of top Questions asked in NEET (UG)

A thin circular ring M and radius ‘r’ is rotating about its axis with a constant angular velocity ω. Four objects each of mass m, are kept gently to the opposite ends of two perpendicular diameters of the ring. The angular velocity of the ring will be -

What is the entropy change (in JK^–1mol^–1) when one mole of ice is converted into water at 0ºC?(The enthalpy change for the conversion of ice to liquid water is 6.0 KJ mol^–1 at 0ºC)

A bar magnet is oscillating in the Earth's magnetic field with a period T. What happens to this period and motion if this mass is quadrupled:

Which one of the following monomers gives the polymer neoprene on polymerization :

A man weighs 80 kg, he stands on a weighing scale in a lift which is moving upwards with a uniform acceleration of 5 m/s². What would be the reading on the scale? (g=10 m/s²)

The potential energy of a simple harmonic oscillator when the particle is half way to its end point is:

A charge q is located at the centre of a cube. The electric flux through any face is:

Acrolein is a hard,horny and a high melting point material. Which of the following represent its structure:

Reverse bias applied to a junction diode

A charged particle moves through a magnetic field in a direction perpendicular to it. Then the

The value of Planck's constant is 6.63×10^–34Js. The velocity of light is 3.0×10⁸ ms^–1. Which value is closest to the wavelength in nanometers of a quantum of light with a frequency of 8×10¹⁵ s^–1:

A n-p-n transistor conducts when

When a long spring is stretched by 2 cm, its potential energy is U. If the spring is stretched by 10 cm, the potential energy stored in it will be:

The volume occupied by an atom is greater than the volume of the nucleus by a factor of about

The radioisotope, tritium 13(H) has a half-life of 12.3 years. If the initial amount of tritium is 32 mg, how many milligrams of it would remain after 49.2 years:

Which one of the following is a free-radical substitution reaction:

The acceleration due to gravity on the planet A is 9 times the acceleration due to gravity on planet B. A man jumps to a height of 2m on the surface of A. What is the height of jump by the same person on the planet B.

A man throws balls with the same speed vertically upwards one after the other at an interval of $2s$. What should be the speed of the throw so that more than two balls are in the sly at any time? (Given $g = 9.8\, m/s^2$)

The molar heat capacity of water at constant pressure, C, is 75 JK^–1mol^–1. When 1.0 KJ of heat is supplied to 100 g of water which is free to expand, the increase in temperature of water is:

Fluoride pollutions mainly affects:

Given below are four matchings of an animal and its kind of respiratory organ: