List of top Questions asked in NEET (UG)

A particle is executing SHM along a straight line. It velocities at distances $x_1$ and $x_2$ mean position are $V_1$ and $V_2$, respecilvely. Its time period is :
A particle of mass m is driven by a machine that delivers a constant power k watts. If the particle starts from rest the force on the particle at time t is
A particle of unit mass undergoes one dimensional motion such that its velocity varies according to $v(x)=\beta x^{-2n},$ where $\beta$ and $n$ are constants and $x$ is the position of the particle. The acceleration of the particle as a function of $x$, is given by
A plank with a box on it at one end is gradually raised about the other end. As the angle of inclination with the horizontal reaches 30$^{\circ}$, the box starts to slip and slides 4.0 m down the plank in 4.0 s The coefficients of static and kinetic friction between the box and the plank will be, respectively
A pleiotropic gene
A potentiometer wire has length 4 m and resistance $8\, \Omega.$ The resistance that must be connected in series with the wire and an accumulator of e.m.f. 2 V, so as to get a potential gradient 1 mV per cm on the wire is
A potentiometer wire of length $L$ and a resistance $r$ are connected in series with a battery of e.m.f. $E_0$ and a resistance $r_1$ An unknown e.m.f. $E$ is balanced at a length $l$ of the potentiometer wire. The e.m.f. $E$ will be given by
A proton and an alpha particle both enter a region of uniform magnetic field $B$, moving at right angles to the field $B$. If the radius of circular orbits for both the particles is equal and the kinetic energy acquired by proton is $1\,MeV$, the energy acquired by the alpha particle will be
A protoplast is a cell
A radiation of energy 'E ' falls normally on a perfectly reflecting surface. The momentum transferred to the surface is (C = Velocity of light)
A rod of weight W is supported by two parallel knife edges A and B and is in equilibrium in a horizontal position. The knives are at a distance d from each other. The centre of mass of the rod is at distance a from A. The normal reaction on A is
A ship A is moving Westwards with a speed of 10 km $h^{ - 1}$ and a ship B 100 km South of A, is moving Northwards with a speed of 10 km $ h^{ - 1}$. The time after which the distance between them becomes shortest, is
A technique of micropropagation is
A wire carrying current I has the shape as shown in adjoining figure. Linear parts of the wire are very long and parallel to . X-axis while semicircular portion of radius R is lying in Y-Z plane. Magnetic field at point O is
Among china rose, mustard, brinjal, potato, guava, cucumber, onion and tulip, how many plants have superior ovary?
Aqueous solution of which of the following compounds is the best conductor of electric current?
Arrange the following events of meiosis in a proper sequence and select the correct option. I. Terminalisation II. Crossing over III. Synapsis IV. Disjunction of genome
Auxin can be bioassayed by
Axile placentation is present in
Capacitation refers to changes in the
Chromatophores take part in
Cobalt (III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at $25^{\circ } C$?
Coconut water from a tender coconut is
Consider $3^{rd}$ orbit of $He^+$ (Helium), using non-relativistic approach, the speed of electron in this orbit will be [given $ K= 9 \times 10^9$ constant, Z = 2 and h (Planck's Constant) = $6.6 \times 10^{-34} J s$]
Cryopreservation of gametes of threatened species in viable and fertile condition can be referred to as