An object of height 1 cm is kept perpendicular to the principal axis o – InterviewSolution

1.	An object of height 1 cm is kept perpendicular to the principal axis of a convex mirror of radius of curvature 20 cm. Distance of the object from the mirror is 20 cm. If the distance between heads of the image and the object will be √1601×xy cm, then what is the value of y−x.
Answer» An object of height $1 cm$ is kept perpendicular to the principal axis of a convex mirror of radius of curvature $20 cm$ . Distance of the object from the mirror is $20 cm$ . If the distance between heads of the image and the object will be $\sqrt{\frac{1601 \times x}{y}}$ cm, then what is the value of $y - x$ .

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