List of top Questions asked in NEET (UG)- 2004

Which of the following propagates through leaf-tip?
Which of the following is least reactive in a nucleophilic substitution reaction?
Which form of RNA has a structure resembling clover leaf
Flagella of prokaryotic and eukaryotic cells differ in
A compound formed by elements $X$ and $Y$ crystallizes in a cubic structure in which the $X$ atoms are at the corners of a cube and the $Y$ atoms are at the face-centers. The formula of the compound is :-
DNA fingerprinting refer to
ELISA is used to detect viruses where the key reagent is
Extranuclear inheritance is the consequence of presence of genes in
Which one of the following statements about the zeolites is false ?
Which of the following statement is not correct?
Plants adapted to low light intensity have
The following ratio is generally constant for a species
When three identical bulbs of 60 watt 200 volt rating are connected in series to a 200-volt supply, the power drawn by them will be
The electric resistance of a certain wire of iron is R. If its length and radius are both doubled then
The unit of permittivity of free space ε0 is
A galvanometer acting as a voltmeter will have
Which one of the following statements is true for the speed 'v' and the acceleration 'a' of a particle executing simple harmonic motion
Of the diodes shown in the following diagrams, which one of the diode is reverse biased ?
A car is moving towards a high cliff. The car driver sounds a horn of the frequency 'f'. The reflected sound heard by the driver has a frequency of 2f. If 'v' is the velocity of sound then the velocity of the car, in the same velocity\ units, will be
The density of the newly discovered planet is twice that of earth. The acceleration due to gravity at the surface of the planet is equal to that at the surface of the earth. If the radius of the earth is R, the radius of the planet would be
A beam of light composed of red and green rays is incident obliquely at a point on the face of a rectangular glass slab. When coming out on the opposite parallel face, the red and green rays emerge from

A particle of mass m1 is moving with a velocity v1 and another particle of mass m2 is moving with a velocity v2. Both of them have the same momentum but their different kinetic energies are E1 and E2 respectively. f m1 > m2 then :

The refractive index of the material of a prism is 2 and its refracting angle is 30º. One of the refracting surfaces of the prism is made a mirror inwards. A beam of monochromatic light entering the prism from the other face will retrace its path after reflection form the mirrored surface if its angle of incidence on the prism is
A stone is tied to a string of length 'l' and is whirled in a vertical circle with the other end of the string as the center. At a certain instant of time, the stone is at its lowest position and has a speed of 'u'. The magnitude of the change in velocity as it reaches a position where the string is horizontal (g being acceleration due to gravity) is
In semiconductors at a room temperature