Questions

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

Find the power of a convex lens if the image formed is at a distance of 20 cm from the lens when the object is placed on the other side of the lens at 25 cm from the optical centre?

According to Malthusian theory of population

Which country has the most coal reserves?

In the following questions, one part of the sentence may have an error. Find out which part of the sentence has an error and click the button corresponding to it. If the sentence is free from error, click the "No error" option.

I called (A)/ at his house yesterday (B)/ and have given him money (C)/ No Error (D)

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech.
The coach said to the child, "Don't make the water muddy."

The question below consists of a set of labelled sentences. These sentences, when properly sequenced form a coherent paragraph. Select the most logical order of sentences from among the options.

P: We can be kind to human beings who need our help.
Q: Kindness is a quality that human beings show in various ways.
R: We can also be kind to other life forms like dogs, cats and other pets and domesticated animals, and to wildlife like birds and animals.
S: We can be kind to our family members, relatives, friends and neighbours.

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

Thank you for (1)/ getting me (2)/ of the hook. (3)/No Error (4)