Questions

With which of the following body organ is 'pace-maker' associated?

What type of a body plan does coelenterates, ctenophores and echinoderms have?

In 2017, which celebrity was appointed as the Goodwill Ambassador of the United Nations in India to amplify awareness about the Sustainable Development Goals (SDGs)?

In the following question, four words are given out of which one word is correctly spelt. Select the correctly spelt word.

What is the value of [sec θ/(sec θ – 1)] + [sec θ/(sec θ + 1)]

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

Name the official language of Brazil?

A current I flows through a resistor. A source maintains a potential difference of V across the resistor. The energy supplied by the source in time t is