Questions

A hard coal containing little volatile matter is called ______.

Which phenomenon is responsible for the echo of sound wave?

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

A government by the military class

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

Kiling of birds

Select the word with the correct spelling.

Select the word with the correct spelling.

What is the simplified value of [(sec3x – tan3x)/(sec x – tan x)] – 2 tan2x – sec x tan x?

Alpha particles are ___________.