Exams

When light passes from one medium to another, this phenomenon of change in its direction is called _____.

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech.

My sister said to me, "You didn't help me yesterday so I will not help you now."

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

express a proposition, theory, etc. in clear or definite terms.

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'.

Pravin sat up on the (1)/ sofa, with his legs (2)/ tucked down him. (3)/No Error (4)

If ab+ba = -1, then the value of a2b-b2a is

Rust is formed from iron and

Who is awarded a Purple Heart?

Consumer surplus arises in a market because