NEET 2010 Question Paper with Solutions

A solid cylinder and a hollow cylinder, both of the same mass and same external diameter are released from the same height at the same time on an inclined plane. Both roll down without slipping. Which one will reach the bottom first?

A particle of mass M, starting from rest, undergoes uniform acceleration. If the speed acquired in time T is V, the power delivered to the particle is

(1) Centre of gravity (C.G) of a body is the point at which the weight of the body acts. (2) Centre of mass coincides with the centre of gravity if the earth is assumed to have infinitely large radius. (3) To evaluate the gravitational field intensity due to any body at an external point, the entire mass of the body can be considered to be concentrated at its C.G. (4) The radius of gyration of any body rotating about an axis is the length of the perpendicular dropped from the C.G. of the body to the axis. Which one of the following pairs of statements is correct?

The dependence of acceleration due to gravity g on the distance r from the centre of the earth, assumed to be a sphere of radius R of uniform density is as shown in figures below. The correct figure is

A thin circular ring of mass M and radius r is rotating about its axis with constant angular velocity \(\omega\). Two objects each of mass m are attached gently to the opposite ends of a diameter of the ring. The ring now rotates with angular velocity given by

In which of the following molecules the central atom does not have \(sp^3\) hybridization?

The following two reactions are known \(Fe_2O_3(s)+3CO(g)\rightarrow 2Fe(s)+3CO_2(g);\ \Delta H=-26.8\ \text{kJ}\) and \(FeO(s)+CO(g)\rightarrow Fe(s)+CO_2(g);\ \Delta H=-16.5\ \text{kJ}\). The value of \(\Delta H\) for the following reaction \(Fe_2O_3(s)+CO(g)\rightarrow 2FeO(s)+CO_2(g)\) is

Three moles of an ideal gas expanded spontaneously into vacuum. The work done will be

Among the following which one has the highest cation to anion size ratio?

Some statements about heavy water are given below: (i) Heavy water is used as a moderator in nuclear reactors. (ii) Heavy water is more associated than ordinary water. (iii) Heavy water is more effective solvent than ordinary water. Which of the above statements are correct?

The electric field at a distance \(\frac{3R}{2}\) from the centre of a charged conducting spherical shell of radius R is E. The electric field at a distance \(\frac{R}{2}\) from the centre of the sphere is

A current loop consists of two identical semicircular parts each of radius R, one lying in the x-y plane and the other in x-z plane. If the current in the loop is i. The resultant magnetic field due to the two semicircular parts at their common centre is

For transistor action (1) Base, emitter and collector regions should have similar size and doping concentrations. (2) The base region must be very thin and lightly doped. (3) The emitter-base junction is forward biased and base-collector junction is reverse biased. (4) Both the emitter-base junction as well as the base-collector junction are forward biased. Which one of the following pairs of statements is correct?

A ray of light is incident on a \(60^\circ\) prism at the minimum deviation position. The angle of refraction at the first face (i.e., incident face) of the prism is

A closely wound solenoid of 2000 turns and area of cross-section \(1.5\times10^{-4}\ \text{m}^2\) carries a current of 2.0 A. It is suspended through its centre and perpendicular to its length, allowing it to turn in a horizontal plane in a uniform magnetic field \(5\times10^{-2}\) tesla making an angle of \(30^\circ\) with the axis of the solenoid. The torque on the solenoid will be

Which one of the following compounds will be most readily dehydrated?

Following compounds are given. Which of the above compound(s), on being warmed with iodine solution and NaOH, will give iodoform?

Which of the following oxidation states is the most common among the lanthanoids?

Which of the following expressions correctly represents the equivalent conductance at infinite dilution of \(Al_2(SO_4)_3\)? Given that \(\Lambda^\circ_{Al^{3+}}\) and \(\Lambda^\circ_{SO_4^{2-}}\) are the equivalent conductances at infinite dilution of the respective ions.

The rate of the reaction, \(2NO+Cl_2\rightarrow 2NOCl\) is given by the rate equation rate = \(k[NO]^2[Cl_2]\). The value of the rate constant can be increased by