Questions

Which glass is used to make spectacles?

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.

Which is the biggest building at Mohenjodaro?

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?