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1. Which property of concave mirror is utilized for using them as shaving mirrors? 2. 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 3. A concave lens has a focal length of 50 cm. Calculate its power.

Answer» 1. Which property of concave mirror is utilized for using them as shaving mirrors?
2. 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
3. A concave lens has a focal length of 50 cm. Calculate its power.


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