(i) Which property of concave mirror is utilized for using them as shaving mirrors? (ii) Light passes through a rectangular glass slab and through a triangular glass prism. Using proper ray diagram, explain in what way does the direction of the two emergent beams differs with respect to the incident beam of light. (iii) A concave lens has a focal length of 50 cm Calculate its power.
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the concave mirror gives a virtual erect image with magnified size when the object is between the focus and the pole of the mirror....
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