Sir

I am Shaun job of class 10, I have a doubt in physics on the topic of optics , this is the question Sir,

Can you tell what is the defect of using convex mirrors as rear view mirrors ?, Please explain using ray diagrams , In the video on convex mirrors my teacher says that when an object is very close to the convex mirror there are blind spot's as a ray Comming from that does not reach us, please explain this statement also if you can,Sir,

Is there any way in which we can circumvent this problem,

Thank you for your time Sir

Shaun

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Solution

You know that a convex mirror has a wider field of view than a plane mirror due to which it is used as a rear view mirror. But, as the image size is smaller than the object size, the objects in the mirror appear to be farther than they actually are. This can cause the viewer to assume the car behind him might be farther than it actually is.

This is a disadvantage of using a convex mirror and it is due to the same reason that it is written on rear view mirrors that - objects in the mirror are closer than they appear.

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