An object is placed in front of a convex mirror, and the size of the image is one-third that of the object. what is the ratio (d,/f) of the object distance to the focal length of the mirror?

The ratio of the object distance to the focal length of the mirror is 4:1.

Explanation:

Given that,

The size of the image is one-third that of the object.

We need to calculate the focal length of the mirror

Using formula of mirror

Where, v = image distance

u = object distance

Put the value into the formula

We need to calculate the ratio of the object distance to the focal length of the mirror

Hence, The ratio of the object distance to the focal length of the mirror is 4:1.

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.

explanation:

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