List of top Questions asked in NEET (UG)

Infinite number of bodies, each of mass 2 kg are situated on x-axis at distance 1m, 2m, 4m, 8m, ...., respectively, from the origin. The resulting gravitational potential due to this system at the origin will be
An explosion breaks a rock into three parts in a horizontal plane. Two of them go off at right angles to each other. The first part of mass $1\, kg$ moves with a speed of $12 \, ms^{-1}$ and the second part of mass $2 \,kg$ moves with $8 \, ms^{-1}$ speed. If the third part files off with $4 \, ms^{-1}$ speed, then its mass is :
The instantaneous values of alternating current and voltages in a circuit are given as $i=\frac{1}{\sqrt2}\sin(100\pi t)$ ampere $e=\frac{1}{\sqrt2}\sin(100\pi t+\frac{\pi}{3})$ Volt . The average power in watts consumed in the circuit is
The motion of a particle along a straight line is described by equation $ x = 8 + 12t - t^3 $ where $x$ is in metre and $t$ in second. The retardation of the particle when its velocity becomes zero is
Two sources of sound placed close to each other, are emitting progressive waves given by $y _{1}=4 \sin 600\, \pi t$ and $y _{2}=5 \sin 608\, \pi t :$ An observer located near these two sources of sound will hear
In a coil of resistance 10 Ω, the induced current developed by changing magnetic flux through it, is shown in figure as a function of time. The magnitude of change in flux through the coil in weber is
In a coil of resistance 10 Ω, the induced current developed by changing magnetic flux through it, is shown in figure as a function of time.
Bond order of $1.5$ is shown by:
The upright pyramid of numbers is absent in
What is the function of germ pore?
Companion cells are closely associated with
A car of mass m is moving on a level circular track of radius R.If $\mu_s$ represents the static friction between the road and tyres of the car, the maximum speed of the car in circular motion is given by
When a biconvex lens of glass having refractive index $1.47$ is dipped in a liquid, it acts as a plane sheet of glass. This implies that the liquid must have refractive index
If the momentum of an electron is changed by P, then the de Broglie wavelength associated with it changes by $0.5 \%. $ The initial momentum of electron will be
In the circuit shown the cells A and B have negligible resistances. For $V_A =12\, V,\, R_1 =500\, \Omega $ and $ R =100\, \Omega $ the galvanometer (G) shows no deflection. The value of $V_B$ is
_____ is the rate of production of organic matter by consumers.
Best defined function of manganese in green plants is
Read the following statements (a - e) and answer as asked (a) In Equisetum, the female gametophyte is retained on the parent sporophyte (b) In Ginkgo, male gametophyte is not independent (c) The sporophyte in Riccia is more developed than that in Polytrichum (d) Sexual reproduction in Volvox is isogamous (e) The spores of slime moulds lack cell walls How many of above statements are correct
Identify the wrong statement in the following.
Read the following four statements (A - D). (A) Colostrum is recommended for the new born because it is rich in antigens. (B) Chikungunya is caused by a Gram negative bacterium. (C) Tissue culture has proved usefiil in obtaining virus-free plants. (D) Beer is manufactured by distillation of fermented grape juice. How many of the above statements are wrong?
Read the following four statements (A - D). (A) In transcription, adenosine pairs with uracil. (B) Regulation of lac operon by repressor is referred to as positive regulation. (C) The human genome has approximately 50,000 genes. (D) Haemophilia is a sex-linked recessive disease. How many of the above statements are right?
The coconut water and the edible part of coconut are equivalent to
For its activity, carboxypeptidase requires
Equal volumes of two monoatomic gases, A and B, at same temperature and pressure are mixed. The ratio of specific heats $(C_p/C_v)$ of the mixture will be -
Even in absence of pollinating agents seed-setting is assured in
Identify the human developmental stage shown below as well as the related right place of its occurrence in a normal pregnant woman, select the right option for the two, together. Dev elopmental - Site of occurrence stage