Questions

Calculate the work done by the force of gravity when a satellite moves in an orbit of radius 40,000 km around the earth.

If two coulomb of charge flows through any cross-section of a conductor in one second, what will be the current flowing through it?

In ____________, the short run equilibrium results in quantity produced being lesser and prices being higher compared to perfect competition.

Which of the following is a tertiary activity?

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 itby selecting the appropriate option.

There are _____ books on computer science in your school library, so you need to purchase them from the market.

In the process of ___, the iron is protected by a coating of zinc.

Read the sentence to find out whether there is any error in it. The error, if any, will be in one part of the sentence. If the given sentence is correct as it is, the answer is ‘No error’. Ignore the errors of punctuation, if any.

In such delicate matters,/ we often take/ his advice as he has/ been effectively handling such cases for a decade.

In the following question, a sentence / a part of sentence is underlined. Below are given alternatives to the underlined part which may improve the sentence. Choose the correct alternative. In case no improvement is required, choose "No Improvement" option.

The reason why the magazine sells so well is because it is written in a pleasant style.