List of practice Questions

Four metal conductors having different shapes a) a sphere b) cylindrical c) pear d) Lightening conductor are mounted on insulating stands and charged. The one which is best suited to retain the charge for a longer time is

By using only two resistance coils-singly, in series, or in Parallel-one should be able to obtain resistances of $3, 4, 12$ and $16$ ohms. The separate resistances of the coil are

The magnitude of $I$ in ampere unit is

The circular motion of a particle with constant speed is:

Which of the following pairs is correctly matched ?

An acromion process is characteristically found in the :

$9th$ pair of cranial nerve in frog is :

Chlorophyll in chloroplasts is located in

Centromere is required for

The main organelle involved in modification and routing of newly synthesized proteins to their destinations is:

A heavy brass sphere is hung from a weightless inelastic spring and as a simple pendulum its time period of oscillation is T. When the sphere is immersed in a non-viscous liquid of density 1/10 that of brass, it will act as a simple pendulum of period :

The relation between time $t$ and distance $x$ is $t = ax^2 + bx$, where $a$ and $b$ are constants. The acceleration is:

Which one of the following experiments suggests that simplest living organisms could not have originated spontaneously from non-living matter ?

There are two opposing views about origin of Modern man. According to one view Homo erectus in Asia were the ancestors of modern man. A study of variations of DNA however suggested African origin of Modem man. What kind of observation on DNA variation could suggest this?

Using imprints from a plate with complete medium and carrying bacterial colonies, you can select streptomycin resistant mutants and prove that such mutations do not originate as adaptation. These imprints need to be used :

Which of the following is the relatively most accurate method for dating of fossils ?

At a particular locus, frequency of 'A' allele is 0.6 and that of 'a' is 0.4. What would be the frequency of heterozygotes in a random mating population at equilibrium ?

A child with mother of blood group A and father of blood group AB, will not have which of the following blood group?

Equimolar solutions in the same solvent have :

In contrast to annelids the Platyhelminthes show

In the reaction $ A(s)+B(g)+$ heat $ \rightleftharpoons 2C(s)+2D(g) $ at equilibrium, pressure of $B$ is doubled to re-establish the equilibrium. The factor by which concentration of $D$ is changed, is:

Which of the following is an inert gas ?

A cylindrical bar magnet is kept along the axis of a-circular coil. If the magnet is rotated about its axis, passing through the centre, perpendicular to the face, then:

Core of a transformer is made up of:

Sucrose molecule is made up of