Choose the correct options for the following questions.
What will be the speed of electron having an energy of $1.82\times10^{-17}$ Joule?
Difficulty: Easy
A:
$1.9\times10^{18}$
B:
$2.197\times10^{-25}$
C:
$2\times10^{7}$
D:
None
What is the unit of Power?
Difficulty: Easy
A:
Watt
B:
Ampere
C:
Newton
D:
Joules
A body of mass m moving with velocity v has a kinetic energy K. If its velocity is increased by 25%, what will be the new kinetic energy?
Difficulty: Easy
A:
$\frac{25}{16}$ K
B:
$\frac{23}{34}$ K
C:
$\frac{12}{45}$ K
D:
$\frac{34}{58}$ K
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