Questions

A Sonar of a ship sends sounds waves of speed 1000 m/s. These waves are reflected back by the ocean floor in 2 seconds. Find the depth (in m) of theocean floor. 

HTML in computer science stands for?

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

Delusion of suffering from a disease

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.

The taxi will drop you at the airport.

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

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

To bite the dust

In the following question, out of the given four alternatives, select the one which best expresses the meaning of the given word.

Winsome

If cosecA - cotA = x, then the value of x is