what is the angle of incident of a ray if the reflectdmed Ray is at smn angle of 90. to the incident ray
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According to the law of reflection, the angle of incidence is equal to the angle of refraction.
That is, ∠i=∠r. Let it be x.
In this case, the difference between the angle of incidence and angle of refraction is 90 degrees.
Given, ∠i+∠r = 90 degrees
or, x+x=90
or, x=45
Hence, the angle of incidence is 45
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the ray of light coming from an objects that falls on the surface of the mirror is called incident rays
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