Question
A pulse of light duration 10-5 s is absorbed
fully by a little object initially at rest. If the power of this pulse is 45 × 10-3 W, compute the final momentum of the object?Solution
The correct answer is A
Select the most appropriate meaning of the given idiom.
Spill the beans
Eating mud
Select the most appropriate meaning of the given idiom.
Close fisted
Blue-blooded
That cannot be taken away
In the given question a sentence with a blank is given. From the options choose the idiom which will fit perfectly in the blank and make the sentence c...
Dead Ringer
The given idiom is followed by four meanings. Choose the one which best expresses the meaning of the given idiom.
In dribs and drabs
Of the four options given, choose the most appropriate one.
In each of the following questions, an idiomatic expression/a proverb has been underlined – followed by four alternatives. Choose the one which best ...