List of top Questions asked in NEET (UG)

A parallel beam of fast moving electrons is incident normally on a narrow shit. A fluorescent screen is placed at a large distance from the slit. If the speed of the electrons is increased, which of the following statements is correct?
In a n-type semiconductor, which of the following statement is true?
In a common emitter (CE) amplifier having a voltage gain G, the transistor used has transconductance 0.03 mho and current gain 25. If the above transistor is replaced with another one with transconductance 0.02 mho and current gain 20, the voltage gain will be
The output (X) of the logic circuit shown in figure will be
Some meta-directing substituents in aromatic substitution are given. Which one is most deactivating ?
Which of the following is a polar molecule ?
In the reaction Chemical Structure A is
The order of stability of the following tautomeric compounds is
Chemical structures of Carbon and Hydrogen
A biologist studied the population of rats in a barn. He found that average natality was 250, average mortality 240, immigration 20 and emigration 30. The net increase in population is
A pregnant female delivers a baby who suffers from stunted growth, mental retardation, low intelligent quotient and abnormal skin. It is due to
Incorrect statement with regard to haemophilia is
Which of the following represent maximum number of species among global biodiversity
Which one of the following statements is correct regarding sexually transmitted infections $(STIs)$?
The value of Planck's constant is 6.63 × 10-34 Js. The speed of light is 3 x 1017 nm s-1. Which value is closest to the wavelength in nanometer of a quantum of light with frequency of 6 x 1015 s-1?
What is the maximum numbers of electrons that can be associated with the following set of quantum numbers ?
n = 3, l=1 and m = -1
A reaction having equal energies of activation for forward and reverse reactions has
A fluid is in streamline flow across a horizontal pipe of variable area of cross section. For this which of the following statements is correct?
One coolie takes 1 minute to raise a suitcase through a height of 2 m but the second coolie takes 30 s to raise the same suitcase to the same height. The powers of two coolies are in the ratio
For photoelectric emission from certain metal the cutoff frequency is v. If radiation of frequency 2v impinges on the metal plate, the maximum possible velocity of the emitted electron will be (m is the electron mass) :
Pigment containing membranous extensions in some cyanobacteria are
Satellite RNAs are present in some
Among flowers of Calotropis, tulip, Sesbania, Asparagus, Colchicum, sweet pea, Petunia, Indigofera, mustard, soybean, tobacco and groundnut, how many plants have corolla with valvate aestivation?
A sedentary sea anemone gets attached to the shell lining of hermit crab. The association is :
A major site for synthesis of lipids is
Global warming can be controlled by :