Questions

In a hydrogen atom, an electron moves in an orbit of radius 5.0 x 10-11 m with a speed of 2.2 x 106 m/s. What is the equivalent current? (Electronic charge = 1.6 x10-19 C)

(−12)[11+7×(−3)]÷{}[413−(−3)×(−6)]=

How many players are there in a team of Volleyball?

Who discovered Penicillin?

Who discovered Fullerene (an allotrope of carbon)?

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

Humongous changes (has occurred) in the last two decades

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

A good deal of money will be made by that investment.

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

He exclaimed with regret that he was perished by the people he had made.