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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Physics
Rain drops fall from great height. Which among the following statements is true regarding it?

Their velocity increases and they fall with different velocity on the earth
They fall with that ultimate velocity, which are different for different droplets
Their velocity increases and they fall with same velocity on the earth
They fall with same ultimate velocity

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