Questions

Who coined the term "Ecology"?

What is the unit of the physical quantity Entropy?

A sound wave has a frequency of 4 kHz and a wavelength of 40 cm. The time taken by the sound wave to travel a distance of 3.2 km is

Fuse wire is made of an alloy of

Find the acceleration (in m/s2) of a body which accelerates from 10 m/s to 20 m/s in 4 seconds.

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.

Your father said to me,"I should not have given my daughter such a long rope."

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

Vexation for humiliation of disappointment

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

Whistle in the dark