Questions

An echo is returned in 3 s. What is the distance of the reflecting surface from the source, considering the speed of sound as 342 ms-1?

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.

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

Be appropriate or applicable

Red Data Book provides an account of

Who is the author of "Promise Me a Million Times"?

What is an octroi ?

Biogas is produced from biomass by

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'.
I finished my household chores (1)/ before he reached (2)/ to my place after so long. (3)/ No Error (4)