NEET 2008 Question Paper with Solutions

A particle of mass m is projected with velocity v making an angle of \(45^\circ\) with the horizontal. When the particle lands on the level ground the magnitude of the change in its momentum will be:

A particle moves in a straight line with a constant acceleration. It changes its velocity from \(10\ \text{ms}^{-1}\) to \(20\ \text{ms}^{-1}\) while passing through a distance 135 m in t second. The value of t is

At \(10^\circ C\) the value of the density of a fixed mass of an ideal gas divided by its pressure is x. At \(110^\circ C\) this ratio is

On a new scale of temperature (which is linear) and called the W scale, the freezing and boiling points of water are \(39^\circ W\) and \(239^\circ W\) respectively. What will be the temperature on the new scale, corresponding to a temperature of \(39^\circ C\) on the Celsius scale?

The wave described by \(y=0.25\sin(10\pi x-2\pi t)\), where x and y are in metres and t in seconds, is a wave travelling along the

Which one of the following arrangements does not give the correct picture of the trends indicated against it?

Which of the following are not state functions? (I) q + w (II) q (III) w (IV) H - TS

For the gas phase reaction, \(PCl_5(g)\rightleftharpoons PCl_3(g)+Cl_2(g)\) which of the following conditions are correct?

How many moles of lead (II) chloride will be formed from a reaction between 6.5 g of PbO and 3.2 g HCl?

If uncertainty in position and momentum are equal, then uncertainty in velocity is

A p-n photodiode is made of a material with a band gap of 2.0 eV. The minimum frequency of the radiation that can be absorbed by the material is nearly

The ground state energy of hydrogen atom is -13.6 eV. When its electron is in the first excited state, its excitation energy is

In an a.c. circuit the e.m.f. (\(\varepsilon\)) and the current (i) at any instant are given respectively by \(\varepsilon=E_0\sin\omega t, i=I_0\sin(\omega t-\phi)\). The average power in the circuit over one cycle of a.c. is

If the lattice parameter for a crystalline structure is \(3.6\ \text{\AA}\), then the atomic radius in fcc crystal is

Two nuclei have their mass numbers in the ratio of 1:3. The ratio of their nuclear densities would be

The angular shape of ozone molecule (\(O_3\)) consists of

In which of the following coordination entities the magnitude of \(\Delta_o\) (CFSE in octahedral field) will be maximum? (At. No. Co = 27)

Kohlrausch's law states that at

Acetophenone when reacted with a base, \(C_2H_5ONa\), yields a stable compound which has the structure

If a stands for the edge length of the cubic systems: simple cubic, body centred cubic and face centred cubic, then the ratio of radii of the spheres in these systems will be respectively