Question

Multiple Choice Questions (MCQs)

9. According to New Cartesian Sign Convention :

(a) focal length of concave mirror is positive and that of convex mirror is negative

(b) focal length of both concave and convex mirrors is positive

(c) focal length of both concave and convex mirrors is negative

(d) focal length of concave mirror is negative and that of convex mirror is positive

10. One of the following does not apply to a concave mirror. This is : (a) focal length is negative

(b) image distance can be positive or negative

(c) image distance is always positive

(d) height of image can be positive or negative​

Answer 1

Option D

Option C

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