Exams

A balloon is connected to a meteorological station by a cable of length 130 m, inclined at 60 deg to the horizontal. Find the height of the balloon from the ground. Assume that there is no slack in cable.

To enlarge their hold over India, many wars were fought between British and Indians but NOT one of the following.

An element has an atomic weight of W and an atomic number of N. The number of protons in the nucleus of its atom is

The height of a light house is 20 mts above sea level. The angle of depression (from the top of the lighthouse) of a ship in the sea is 30 deg. What is the distance of the ship from the foot of the light house?

What is the number of atoms constituting a molecule known as?

If Y is the brother of X, Y is Z's son then Z's father is X's ___.

Which is the only organ in the human boddy that can regrow/regenerate?

Solve : (x + 2y) (2x - y)