Questions

Calculate the frequency (in Hz) of a sound wave of wavelength 5 m travelling with a speed of 360 m/s.

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

to allay the sorrow or grief

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.

‘Don’t you know the way to the station?’ father said to Anjali.

Give an example of a salt which gives an aqueous solution of pH less than 7.

Which of the following elements has the lowest melting point?

Which of the following phrases (i), (ii), and (iii) given below each sentence should replace the phrase printed in bold letters to make the sentence grammatically correct? Choose the best option among the five given alternatives that reflect the correct use of phrase in the context of the grammatically correct sentence. If the sentence is correct as it is, mark (E) i.e., "No correction required" as the answer.
The co-production agreement has already resulted in several film ventures being signed, and this would hopefully open up the market for more Indian films and television programs.
i. and this hopefully open up the market
ii. and this hopefully opened up the market
iii. and this is hopefully opening up the market

Which of the following is responsible for Vermicomposting?

Which of the statements given below are correct?
1. The author of the novel 'Air' is Geoff Ryman.
2. The author of the novel 'Ulysses' is James Joyce.
3. The author of the novel 'The Great Gatsby' is F. Scott Fitzgerald.