NEET 2004 Question Paper with Solutions

The ratio of the radii of gyration of a circular disc about a tangential axis in the plane of the disc and of a circular ring of the same radius about a tangential axis in the plane of the ring is

If \(\lambda_m\) denotes the wavelength at which the radioactive emission from a black body at a temperature TK is maximum, then

A particle of mass \(m_1\) is moving with a velocity \(v_1\) and another particle of mass \(m_2\) is moving with a velocity \(v_2\). Both of them have the same momentum but their different kinetic energies are \(E_1\) and \(E_2\) respectively. If \(m_1>m_2\) then:

One mole of an ideal gas at an initial temperature of T K does 6R joule of work adiabatically. If the ratio of specific heats of this gas at constant pressure and at constant volume is 5/3, the final temperature of gas will be

A round disc of moment of inertia \(I_2\) about its axis perpendicular to its plane and passing through its centre is placed over another disc of moment of inertia \(I_1\) rotating with an angular velocity \(\omega\) about the same axis. The final angular velocity of the combination of discs is

Which is the best description of the behaviour of bromine in the reaction given below? \(H_2O+Br_2\rightarrow HOBr+HBr\)

A solid compound X on heating gives \(CO_2\) gas and a residue. The residue mixed with water forms Y. On passing an excess of \(CO_2\) through Y in water, a clear solution Z is obtained. On boiling Z, compound X is reformed. The compound X is

\(H_2O\) is dipolar, whereas \(BeF_2\) is not. It is because

The rapid change of pH near the stoichiometric point of an acid-base titration is the basis of indicator detection. pH of the solution is related to ratio of the concentrations of the conjugate acid (HIn) and base (\(In^-\)) forms of the indicator by the expression

The maximum number of molecules is present in

A galvanometer of 50 ohm resistance has 25 divisions. A current of \(4\times10^{-4}\) ampere gives a deflection of one division. To convert this galvanometer into a voltmeter having a range of 25 volts, it should be connected with a resistance of

The electric resistance of a certain wire of iron is R. If its length and radius are both doubled, then

The Bohr model of atoms

In India electricity is supplied for domestic use at 220 V. It is supplied at 110 V in USA. If the resistance of a 60 W bulb for use in India is R, the resistance of a 60 W bulb for use in USA will be

Of the diodes shown in the following diagrams, which one is reverse biased?

Lanthanoids are

Among K, Ca, Fe and Zn, the element which can form more than one binary compound with chlorine is

Which of the following is least reactive in a nucleophilic substitution reaction?

The helical structure of protein is stabilised by

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 :-