Questions

Optical fibre works on which of the following principle of light?

_______________ states that the ratio of the potential difference across a conductor to the current flowing through it, is a constant, provided that its physical conditions, such as temperature, remain constant.

Which of the following is associated with The Government of India's 'Khelo India' programme?

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

Back seat driver

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

Discretion is the greater part of valour

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.

_______________ the course of the development of different life-forms heredity—which, in plain English, is unconscious memory generated in the first life-form and ______________ through all the different species—is the sole factor in the ____________ of the parent properties; while adaptation to surrounding conditions and circumstances, natural selection in the struggle _____________ existence, and partner selection in the struggle of the males for ____________ are the principal factors in the differentiation of species.

sole factor in the ____________ of the parent properties

The land forms formed by wave erosion is

Which Vitamin is obtained from Sun rays?