Nova are thought to occur in a system, X, in which a white-dwarf star orbits a red giant star. What is X?

The brightest star in a constellation _________

A planet is orbiting a star. What is relation between Ta and Tb, given that the arc subtended on the path by the planet is same in both cases?

Nuclear fission is the phenomenon of ___________

The Q-value of fission reaction is of the order ___________

The average energy of a neutron produced in a fission of Uranium 235 isotope is ___________

The moderator commonly used is ___________

The safety-rods present to shut down the reactor are made up of ____________

The neutrons slowed down by moderators are called as ____________

At high temperatures, which material is the best choice to be used as coolant in a nuclear reactor?

A hammer is resting on a plane surface. If force P is applied on the hammer along with a line not passing through its centre of mass, them the hammer _____________

The point where whole weight may be assumed to act is called ___________

Which of the following retain their relative positions even when they move under the action of an external force?

When we steer a bicycle round a bend with both our hands on the handlebars, we apply a ___________

The areal velocity of a planet is constant. This is stated by ___________

The internal torque on the system due to internal force is ___________

Which of the following can execute both translational and rotational motion under the influence of the external field?

A shell explodes into four unequal parts. Which one of the following is conserved?

If the earth stops rotating, the value of g at the equator ___________

An astronaut, while revolving in a circular orbit happens to throw a spoon outside. What will happen to the spoon?