find the ratio

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 curvature is?

6 Answers

1
abhishek upadhyay ·

no, consider the marginal case

1
varun.tinkle ·

i think it should be 1 but its too simple an answer to be true

3
iitimcomin ·

2/3

3
iitimcomin ·

wats the answer given abhishek?[7]

1
abhishek upadhyay ·

2/root(3)

1
Harish Sridhar ·

The correct answer is 2/root(3).

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