Questions

A broadcasting station transmits waves with a frequency of 71 x 104 Hz and a speed of 3 x 108 m/s. The wavelength of the wave is

Which of the following is an ore of iron?

In stems, the protoxylem lies towards the centre and the metaxylem lies towards the periphery of the organ. This type of primary xylem is called _____________.

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.

Worldwide, journalism and the news industry are struggling, in this digital age, to ________________ their relevance and value under profoundly changed and _________________ circumstances. In response ________________ the challenge, a strong view is forming within the profession that one way to ensure that the activities that __________________ journalism will continue to matter is to hone, strengthen, and develop its professional capabilities to perform certain __________________ tasks.

relevance and value under profoundly changed and _________________ circumstances.

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

The heart is classified as a(n)_____.

Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?

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

The state of being in short supply