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)

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 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.

In the following question, out of the four alternatives, select the word similar in meaning to the word given.

Requisite

Who discovered Penicillin?

Who discovered Fullerene (an allotrope of carbon)?

Which of the following was the winner of the Grammy Awards 2016 "Album of the Year"?

How many players are there in a team of Volleyball?