Questions

The absolute refractive index of air is

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'.

Liquid water cannot exist on the surface of Mars as to low (1)/ atmospheric pressure, which is less than 1% of Earth's, (2)/ except at the lowest elevations for short periods. (3)/ No error (4)

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 brother said, "I was not making a noise thus I did not disturb the neighbours."

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

Who has recently been awarded with Nobel Prize for peace in 2016?

The Ministry of Labour and Employment, in January 2018, announced how many persons for Prime Minister's Shram Awards for the year 2016?

Which is the biggest building at Mohenjodaro?

In the following passage some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

Books are our ______ friends. They are our guides. We can learn everything from them. The books contain all the great ______ of the world's leaders and we can learn them by reading the books. The books help us find ______ to our questions. The books never fail us. We should read as ______ books as we can. But all books are not good. So we should ______ only good books.

The books help us find ______ to