Questions

What will be the value of the kinetic energy (Ek) of a moving body with mass m, if its speed is doubled from v to 2v?

The kinetic energy of a ball weighing 0.5 kg moving with a velocity of 4 m/s will be

Stars twinkle but planets do not twinkle because

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'.

The climb upside (1)/ the mountains (2)/ was not easy. (3)/No Error (4)

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

A person or thing that brings bad luck

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'.

His hard (1)/ punch lay (2)/ him on the road . (3)/ No error (4).

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.

Without habit, personality could not exist; for we could never do a thing twice alike, and ___________ would be a new person each succeeding moment. The acts which give us our own peculiar _____________ are our habitual acts--the little things that do themselves moment by moment without care or attention, and are the truest and best expression of our real selves. Probably _______ one of us could be very sure which arm he puts ________ the sleeve, or which foot he puts into the shoe, first; and yet each of us ____________ formed the habit long ago of doing these things in a certain way.

which arm he puts ________ the sleeve

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

Reduce something in size, amount, or extent by a gradual series of steps