Question

convex mirror of focal length f forms an image which is 1/n times the object the distance of the object from the mirror is

Answer 1

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Answer 2

The object the distance of the object from the mirror is u=-(n-1) f.

Why is convex mirror called?

• It is because the light rays when get reflected from the mirror appear to be diverging from a point behind the mirror therefore, a convex mirror is called the diverging mirror.

Where is convex mirror used?

• Convex mirrors are widely used as rear-view mirrors in automobiles and vehicles because it can diverge light beams and make virtual images.

What is the shapes of convex?

• A convex shape is the opposite of a concave shape.
• It curves outward, and its middle is thicker than its edges.

• If you take a football or a rugby ball and place it as if you're about to kick it, you'll see that it has a convex shape its ends are pointy, and it has a thick middle.

According to the question:

Given, Magnification, $\mathrm{m}=\frac{1}{\mathrm{n}}$

So,$\frac{1}{\mathrm{n}}=-\frac{\mathrm{v}}{\mathrm{u}}$

or $\mathrm{v}=-\frac{\mathrm{u}}{\mathrm{n}}$

By using mirror formula, $\frac{1}{f}=\frac{1}{v}+\frac{1}{u}$

$=\frac{1}{-\mathrm{u} / \mathrm{n}}+\frac{1}{\mathrm{u}}\\ \Rightarrow \mathrm{u}=-(\mathrm{n}-1) \mathrm{f}$

Hence, The object the distance of the object from the mirror is u=-(n-1) f.

Learn more about convex mirror here,

https://brainly.in/question/878339?msp_poc_exp=5

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