Discuss refraction at concave mirror
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We consider P as the pole of the mirror, O as the centre of curvature, and PC represents the principal axis of the refractive spherical surface. We consider a point object at O . An incident ray travels through C and it is normal to the spherical surface. ... It will refract at the point A bending towards the normal.
Answer:
Let MPN be concabe spherical surface of a medium of refractive index μ. P is the pole o is the centre of curvature PC is the principle axis. Let O be a point object or it's principle axis kept in a rarer medium first incident ray travelling through C is normal to the spherical surface therefor it will not deviate and goes along PX another mident ray OA will refract at Point A and it bends towards the normal. AB and PX are proceeded behind then at I, a virtual image will be form.