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 best expresses the meaning of the idiom/phrase.

Tie the knot

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

to expel large quantities of (something) rapidly and forcibly

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.

_____________ nearly eight decades, the women's movement __________ and debated the desirability and feasibility of a Uniform Civil Code, and has ended up ___________ a simple question — what is the value of uniformity? Is it for the "integrity of the nation" that uniformity in laws is required, as some judicial pronouncements ___________? If so, who exactly is the beneficiary? Which sections of people benefit from "integrity of the nation", that abstract entity which is not exactly _______ the top of your mind as your husband throws you out on the street?

_____________ nearly eight decades

Out of the four alternatives, choose the one which can be substituted for the given words/sentences and click the button corresponding to it.

That which can be believed

In the following questions, one part of the sentence may have an error. Find out which part of the sentence has an error and click the button corresponding to it. If the sentence is free from error, click the "No error" option.

Several days passed before (A) / Jeff worked over enough (B) / courage to return to the house. (C) / No Error (D)

In each of the questions below are given three statements followed by three conclusions numbered I, II, and III. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follow(s) from the given statements disregarding commonly known facts.
Statements:
Some tables are chairs.
All chairs are benches.
All benches are desks.
Conclusions:
I. Some desks are tables.
II. Some benches are tables.
III. Some desks are chairs.

What is special about a sword-billed hummingbird?