A ray of light from denser medium strikes a rarer medium. The reflected and refracted rays make an angle of 90 degree with each other. The angles of reflection and refraction are r and r'. The critical angle would be

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Q. A ray of light denser medium strikes a rarer medium at an angle of incidence

i

shown in the figure. The reflected and refracted rays make angle

90^{\circ}

with each other. The angles of reflection and refraction are

r

and

r^{^{'}}

. The critical angle is :

Q. A ray of light from a denser medium strikes a rarer medium at an angle of incidence

i

. The reflected and refracted rays make an angle of

π / 2

with each other. If the angles of reflection and refraction are

r

and

r^{'}

, then the critical angle will be

Q. A ray of light from a denser medium strikes a rare medium at an angle of incidence

i

(see figure). The reflected and refracted rays make and angle of

90^{\circ}

with each other. The angles of reflection and refraction are

r

and

r^{'}

. The critical angle is

A ray of light from a denser medium strikes a rarer medium at an angle of incidence i as shown in the figure. The reflected and refracted rays make an angle of $90^{\circ}$ with each other. The angles of reflection and refraction are r and r'. The critical angle is

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