Work Energy And Power Question 47
Question: If the K.E. of a particle is doubled, then its momentum will [EAMCET 1979; CPMT 2003: Kerala PMT 2005]
Options:
A) Remain unchanged
B) Be doubled
C) Be quadrupled
D) Increase $ \sqrt{2} $ times
Show Answer
Answer:
Correct Answer: D
Solution:
$ P=\sqrt{2mE} $ \ $ P\propto \sqrt{E} $ i.e. if kinetic energy of a particle is doubled the its momentum will becomes $ \sqrt{2} $ times.
