AIIMS Previous Paper 2012 - NEET MCQ

In designing, a beam for its use to support a load. The depression at centre is proportional to (where, Y is Young’s modulus)

 A balloon is filled at 27°C and latm pressure by 500 m’ lie. At -3°C and 0.5 atm pressure, the volume of lie will be

The particle of mass 50 kg is at rest. The work done to accelerates it by 20 m/s in 10 s is

The moment of inertia of a circular loop of radius R. at a distance of R / 2 around a rotating axis parallel to horizontal diameter of loop is

The ratio of radius of two bubbles is 2: 1. What is the ratio excess pressure inside them?

In the capacitor of capacitance C, charge Q and energy W is stored. If charge is increased upto 2Q, the energy stored will be

The unit of thermal conductivity is

Photon and electron are given same energy (10-20 J) Wavelength associated with photon statement will he and electron are λp and λe the correct

The half-life of radioactive element is 600 yr. The fraction of sample that would remain after 3000 yr is

A particle moves along with x-axis. The position x of particle with respect to time r from origin given by x = b₀ + b₁t + b₂t². The acceleration of particle is

Root mean square speed of the molecules of ideal gas is v. If pressure is increased two times at constant temperature, then the rms speed will become

1 mole of gas occupies a volume of 200 mL at 100 mm pressure. What is the volume occupied by two moles of gas at 400 mm pressure and at same temperature?

A charged particle travels along a straight line with a speed v in a region where both electric field E and magnetic field B are present. it follows that

What will be the wave velocity, if the radar gives 54 waves/min and wavelength of the given wave is 10 m?

A transformer of 100% efficiency has 200 turns in the primary coil and 40000 rums in secondary coil. It is connected to a 220 V main supply and secondary feeds to a 100 kfl resistance. The potential difference per turn is

A thin convex lens of refractive index 1.5 has 20 cm focal length in air. If the lens is completely immersed in a liquid of refractive index 1.6, us focal length will be

SI unit of permittivity is

A spherical drop of capacitance 1 μF is broken into eight drops of equal radius. Then, the capacitance of each small drop is

A simple harmonic oscillator consists of a panicle of mass in and an ideal spring with spring constant k. The particle oscillates with a time period T. The spring is cut into two equal parts. If one part oscillates with the same particle, the time period will be

The coefficient of viscosity for hot air is

An artificial satellite moving in a circular orbit around the earth has a total (kinetic + potential) energy E₀. Its potential energy is

A thin hollow sphere of mass m is completely filled with a liquid of mass rn. When the sphere rolls with a velocity v, kinetic energy of the system is (neglect friction)

A non-conducting body floats in a liquid at 20°C with 2/3 of its volume immersed in the liquid. When liquid temperature is increased to 100°C, 3 of body’s volume is immersed in the liquid. Then the coefficient of real expansion of the liquid is (neglecting the expansion of container of the liquid)

Two slabs A and B of different materials but of the same thickness are joined end to end to form a composite slab. The thermal conductivities of A and B are K₁ and K₂ respectively. A steady temperature difference of 12°C is maintained across the composite slab. If K₁ = K₂ / 2 the temperature difference across slabs A is

In short wave communication waves of which of following frequencies will be reflected back by the ionospheric layer having electron density 1011 per m3?

A body of mass 4 kg moving with velocity 12 m/s collides with another body of mass 6 kg at rest. If two bodies stick together after collision, then the loss of kinetic energy of system is

A marble block of mass 2 kg lying on ice when given a velocity of 6 m/s is stopped by friction in 10 s. Then the coefficient offriction is