If light is incident vertically on the surface of water, it goes through without bending Does its speed reduce - Science - Light

Question

If light is incident vertically on the surface of water, it goes
through without bending Does its speed reduce or not as it enters
the water?

Vara · Accepted Answer

Dear
Student,
Please find below the solution
to the asked query:
Refractive index:μ=sin isin r=v1v2For normal incidence, i=rHence,sin isin r=sin isin i=1So,v1v2=1orv1=v2From the above expression, it can be concluded that the velocity of lightis same in both media
Ans:No change in speed of light
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If light is incident vertically on the surface of water, it goes through without bending. Does its speed reduce or not as it enters the water?