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draw graph of y=sin2x ...
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a ray of light is incident on concave mirror . it is parallel to principal axis and its height from principal axis is equal to focal length of mirror. the ratio of distance of point B to distance of the focus from centre of c ...
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what will be the shape of image if circle of radius 10cm with its centre at 30cm from pole of mirror of radius of curvature 40cm? *Image* ...