Question
A bullet is fired from a rifle which recoils after
firing. The ratio of kinetic energy of the rifle to that of the bullet is –Solution
The rifle and bullet have zero momentum and zero kinetic energy to start with. When the trigger is pulled, the bullet gains some momentum in the forward direction, but this is canceled by the rifle's backward momentum, so the total momentum is still zero. The kinetic energies of the gun and bullet are both positive scalars, however, and do not cancel.
The sentence below is divided into five segments. Select the option that has an error, if any.Â
The supreme court must (A) / remember that (...
Identify the segment in the sentence which contains a grammatical error.  If there is no error, then select the option "No error".
 And ...
 The Captain along (1)/ with her team is (2)/ practicing very hardly (3)/ for the upcoming matches (4)/ No error (5)Â
Read each sentence carefully to find out whether there is any grammatical or idiomatic error in it. The error, if any, will be in one part of the sente...
Read each sentence to find out whether there is any grammatical error in it. Mark the part with the error as your answer.Â
The plaintiffs sou...
The entire spectrum of education and philosophy ,1) / science and technology have been 2)/ benefitted through 3)/ the introduction of English language 4...
- Of the four given options, choose the most appropriate one.
Read the given sentence to find out whether there are any grammatical/ contextual errors in them. The errors, if any, will be in two of the parts of th...
Before we can enjoy (A) / this world, we have to (B) / learn the technique of enjoyment. (C) / No error(D)
Find out the error according to the grammar and context of the given sentences. If there is no error, mark option 5, i.e. No error. (Ignore the punctu...
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