Physics
If the velocity of a body is halved its kinetic energy ________

Is also doubled
Becomes 1/4 th
Becomes half
Become 4 times

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Physics
Which one of the following is not a property of electromagnetic waves?

Oscillating electric field and magnetic field are perpendicular to each other.
Electromagnetic waves do not require a medium to propagate.
Electromagnetic waves are transverse waves
Electromagnetic waves do not show interference and diffraction.

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