Questions

A Sonar of a ship sends sounds waves of speed 1000 m/s. These waves are reflected back by the ocean floor in 2 seconds. Find the depth (in m) of theocean floor. 

What was the name of the party launched by Subhash Chandra Bose in 1939?

Which one of the following became a part of China in 1997 following the principle of ‘one country, two systems’?

Which light is least effective in photosynthesis?

The longest railway platform in India

A sentence/a part of the sentence is underlined. Four alternatives are given to the underlined part which will improve the sentence. Choose the correct alternative and click the button corresponding to it. In case no improvement is needed, click the button corresponding to “No improvement”.

Would you feel safe if you have to walk through a street alone at midnight?

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

Photosynthesis is (1)/ possible (2)/ because of sun. (3)/ No error (4)

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.
down to the wire