List of top Questions asked in NEET (UG)

A system consists of three masses \(m_1\), \(m_2\) and \(m_3\) connected by a string passing over a pulley \(P\). The mass \(m_1\) hangs freely and \(m_2\) and \(m_3\) are on a rough horizontal table (the coefficient of friction = \(\mu\)). The pulley is frictionless and of negligible mass. The downward acceleration of mass \(m_1\) is (Assume \(m_1 = m_2 = m_3 = m\))

The given graph represents $V-I$ characteristic for a semiconductor device.

Which of the following statement is correct?

When the energy of the incident radiation is increased by $20 \%, $ the kinetic energy of the photoelectrons emitted from a metal surface increased from 0.5 eV to 0.8 eV. The work function of the metal is

In an ammeter 0.2% of main current passes through the galvanometer. If resistance of galvanometer is $G$, the resistance of ammeter will be

A solid cylinder of mass 50 kg and radius 0.5 m is free to rotate about the horizontal axis . A massless string is wound round the cylinder with one end attached to it and other hanging freely. Tension in the string required to produce an angular acceleration of 2 revolutions $ s^ {-2} $ is

A body of mass $(4m)$ is lying in $x-y$ plane at rest. It suddenly explodes into three pieces. Two pieces, each of mass $(m)$ move perpendicular to each other with equal speeds $(v)$. The total kinetic energy generated due to explosion is

Which of the following compounds will not undergo Friedal-Craft's reaction easily?

A uniform force of $(3\hat{i}+\hat{j}) $newton acts on a particle of mass 2 kg. Hence the particle is displaced from position $(2\hat{i}+\hat{k})$ metre to position $(4\hat{i}+3\hat{j}-\hat{k})$ metre. The work done by the force on the particle is

Meiosis takes place in

The foetal ejection reflex in humans triggers the release of

The reddish appearance of the sun at sunrise and sunset is due to

Which of the following Bt crops is being grown in India by the farmers?

Which one of the following statements is correct ?

Which of the following are likely to be present in deep sea water ?

Natural reservoir of phosphorus is

What external changes are visible after the last moult of a cockroach nymph ?

Transition state structure of the substrate formed during an enzymatic reaction is

Product of sexual reproduction generally generates

A phosphoglyceride is always made up of

The complex formed by a pair of synapsed homologous chromosomes is called

Which of the following is not correctly matched for the organism and its cell wall degrading enzyme ?

A diagram showing axon terminal and synapse is given. Identify correctly at least two of A-D

A pregnant female delivers a baby who suffers from stunted growth, mental retardation low intelligence quotient and abnormal skin. This is the result of

If two persons with 'AB' blood group marry and have sufficiently large number of children, these children could be classified as 'A' blood group: 'AB' blood group: 'B' blood group in 1:2:1 ratio. Modern technique of protein electrophoresis reveals presence of both 'A' and 'B' type proteins in 'AB' blood group individuals. This is an example of

Meiosis takes place in