Questions

Which of the following is a characteristic of an exothermic reaction?

A ball is dropped from a height of 10 m. It strikes the ground and rebounds up to a height of 2. m. During the collision, the per cent loss in the kinetic energy is

What is the resistance (in Ω) of an electrical component if a current of 0.2 A passes through it on application of 8 V of potential difference across it?

In each testes in a male reproductive system, there are ________ compartments called testicular lobules.

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.

Society and individuals will evolve __________ changing times. Technology will continue to play an increasingly ____________ role in our lives in the years to come. Passing the blame on to technology is the easiest thing to do, but how we _____________ to use technology is an individual decision. In an attempt to be connected with the world _______ large, are we getting disconnected with the people who mean the most to us? This is a question worth pondering _________.

Society and individuals will evolve __________ changing times.

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

Be appropriate or applicable

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

Let bygones be bygones

If 1 x 3 x 5 = 1925 and 7 x 9 x 11 = 4981121 , then find the value of 19 x 21 x 23 = ?