Questions

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

It is ______ for all the students to follow the rules.

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 ____ of a substance is defined as the mass per unit volume.

An object weighing 20 kg is raised through a height of 2 m. What will be the work done by the force of gravity in this process?

Two identical resistors of 20 ohm each are connected in parallel. This combination, in turn, is connected to a 10 ohm resister. The equivalent resistance of the combination will be

Which of the following is one of the saltiest lakes in the world?

‘SAMPRITI-2017’ is a joint militaiy exercise between armed forces of India and

Orbital period of Halley's comet is ___ years.