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a ray of light falls on a transparent slab of refractive index u.if the reflected and refracted rays are mutually perpendicular to each other,find the angle of incidence.
Sol.
The incident angle is 45 because the angle of reflection and angle of incident is equal.
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#question.I AM TRAYING TO DO A SCIENCE PROJECT FOR 7TH GRADE BUT I DONT KNOW WHAT SHOULD I DO ?
Ask question #Minimumwhat is that definition for cell theory? 100 words accepted#
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angle of incidence =90
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