Question

1. How can you find the focal length of a convex mirror?


2. can we get a magnified image by a convex mirror?


pls help me​

Answer 1

Answer:

1.by using mirror formula. 1\u+1\v=1\f

2.no

Answer 2

Answer:

1) For finding the focal length of the mirror, you can keep an object at a fixed distance from the mirror and then calculate at what distance from the same mirror is it's image formed. focal length can, then, be calculated by using the Lens Formula

$\boxed{ \mathsf{ \frac{1}{f} = \frac{1}{u} + \frac{1}{v} }}$

• f is the focal length
• u is the object distance
• v is the image distance

take their signs accordingly, imagine the mirror to be origin of the Cartesian plane(X-Y plane) and then see if the object or image lies on the right hand side or the other. Use negative for the left hand side.

Focal length can also be calculated if you know about the radius of curvature of the mirror.

$\boxed{ \mathsf{focal \: length = \frac{radius}{2} }}$

2) Yes! It can.

If we place the object between the pole of the mirror nd the focus well get an enlarged virtual image.

Tho, convex Lens tries to diverge the rays coming from the source to a single point, we don't get magnified images in many situations. We get just a virtual magnified image, the real ones are all diminished.