List of top Questions asked in AMUEEE- 1998

An aeroplane is flying horizontally with a velocity of 216 km/h and at a height of 1960 m. When it is vertically above a point A on the ground, a bomb is released from it. The bomb strikes the ground at point B. The distance AB is (ignoring air resistance)

The rate of difusion is

Which of the following pairs does not have same dimension?

A copper ball is heated to $ 100{}^\circ C $ . It cools to $ 80{}^\circ C $ in 5 minutes and to $ 65{}^\circ C $ in 10 minutes. The temperature of the surrounding is

The rotation period of an earth satellite close to the surface of the earth is 83 minutes. The satellite in an orbit at a distance of three times earth radii from 2 jts surface will be

A beaker of radius 6 cm is filled with mercury up to a height to 12 cm. Given that the density of mercury is $ 13600\text{ }kg/{{m}^{3}}, $ the force exerted by the mercury on the bottom of the beaker is approximately.

One-third of spring having force constant k is cut and mass m is suspended to it. If the frequency of oscillation of the original spring with the same mass is/then the frequency of oscillation in one-third of spring is

The length of a needle floating on water is 2.5 cm. How much minimum force, in addition to the weight of the needle will be needed to lift the needle above the surface of water? Surface tension of water is $ 7.2\times {{10}^{-4}}N/cm $ .

A ball is thrown with a kinetic energy E at an angle of $ 45{}^\circ $ with the horizontal in the earths gravitational field. The change in its potential energy at the highest point of its flight with respect to the starting point will be

A metal beam having coefficient of linear expansion $ \alpha $ Youngs modulus $ Y $ , area of across section a and length L, is clamped at both ends. After cooling by $ t{}^\circ C, $ the force exerted in the clamp is

The ratio of specific heat at constant volume $ {{C}_{V}} $ for monoatomic gas to that of polyatomic gas i.e. $ {{C}_{V}} $ (monoatomic)/ $ {{C}_{V}} $ (polyatomic) is