<h2>The option ( c ) is correct </h2>
Explanation:
As the frequency of oscillation of any oscillator is doubled
The velocity of sound v = νλ
here ν is the frequency and λ is the wavelength
Now if ν becomes double , the wavelength λ becomes one half . The velocity of sound remains the same in the same medium .
Thus option ( c ) is correct
If im right the answer is wrong actually because no clue
Good Morning!
It refracts.
The change in the speed of light is called Refraction. This process occurs when light comes in contact with objects of different compositions and structures. Polarization occurs when light only propagates in a particular plane, as opposed to propagating in all.
The answer is D.paleomagnetism
hope this helps