List of practice Questions

MP denotes the mass of a proton and Mn that of a neutron. A given nucleus, of binding energy B, contains Z protons and N neutrons. The mass M(N, Z) of the nucleus is given by (c is the velocity of light )

A vector $ Q\to $ which has a magnitude of 8 is added to the vector $ P\to $ , which lies along the X-axis. The resultant of these two vectors is a third vector $ R\to $ , which lies along the Y-axis and has a magnitude twice that of $ P\to $ .The magnitude of $ P\to $ is :

A normal woman, whose father was colour-blind is married to a normal man. The sons would be

A male human is heterozygous for autosomal genes A and B and is also hemizygous for hemophilic gene h. What proportion of his sperms will be abh

Extranuclear inheritance is the consequence of presence of genes in

The following ratio is generally constant for a species

Identify the gas which is readily adsorbed by activated charcoal

In the manufacture of ammonia by the Haber's process, ${N_{2(g)} +3H_{2(g)} <=> 2NH_{3(g)} + 92.3 kJ} $, which of the following conditions is unfavourable ?

SI unit of permittivity is ...........

Two equal forces ($P$ each) act at a point inclined to each other at an angle of $120^\circ$. The magnitude of their resultant is _____

An uncharged sphere of metal is placed inside a charged parallel plate capacitor. The lines of force will look like .........

The horizontal range of a projectile is $ 4\sqrt{3} $ times its maximum height. Its angle of projection will be

The bond order in NO is 2.5 while that in $NO^+$ is 3. Which of the following statements is true for these two species ?

Which one of the following pair's correctly matches a hormone with a disease resulting from its deficiency

The pair of compounds having metals in their highest oxidation state is

Which one of the following preceeds reformation of the nuclear envelope during M phase of the cell cycle

In the ABO system of blood groups if both antigens are present but no antibody, the blood group of the individual would be

Age of fossils in the past was generally determined by radio-carbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led to the revision of the evolutionary periods for different groups of organisms includes

What kind of evidence suggested that man is more closely related with chimpanzee than with other hominoid apes ?

Which one of the following hormones is a modified amino acid ?

A bicollateral vascular bundle has the following arrangement of tissues .................

Which one of the following ion has the highest value of ionic radius ?

Which of the accompanying P-V diagrams best represent; an isothermal process?

Physical independence of force is a consequence of

In the electrolytic method of obtaining aluminium from purified bauxite, cryolite is added to the charge in order to :