Questions

The ozone layer protects us from harmful _______________ rays of the sun.

Blood pressure is measured by _______.

The absolute refractive index of air is

If the acceleration due to gravity on the surface of earth is g, then the acceleration due to gravity on the surface of a planet whose mass is half of that of earth and radius is same as that of earth is _________________.

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.

People may see, and hear, and feel all their lives without ____________ learning the nature of things they see. But reason is the mind's eye, and enables us to see why things are, and when and how events may be made to happen ___________ not to happen. The logician endeavours to ____________ exactly what this reason is which makes the power of men. We all, as I have said, must reason well or ill, but logic is the science of reasoning and enables us to distinguish ______________ the good reasoning which leads to truth, and the bad reasoning which every day betrays people into error _________ misfortune.

their lives without ____________ learning the nature 

A sentence has been given in Active/Passive Voice. Out of the four given alternatives, select the one which best expresses the same sentence in Passive/Active Voice.

The girl feeds the dog everyday.

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

A bad patch

A sentence has been given in Direct/Indirect Speech. Out of the four given alternatives, select the one which best expresses the same sentence in Indirect/Direct Speech.

“German is easy to teach”, she said.