Questions

There are 15 protons and 22 neutrons in the nucleus of an element. What is its mass number?

The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph.

A nation’s progress

A-requires many policies, many

B-on many fronts

C-plans, and actions

In the following question, four words are given out of which one word is correctly spelt. Select the correctly spelt word.

Study of earth is known as

What is the reason for formation of Mirage in desert?

The force of friction between two surfaces will increase if:

The absolute refractive index of air is

The tree species most commonly used in social forestry is