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What Kind of Mirror Can Have a Focal Length Of, −20 Cm? - CBSE Class 10 - Science

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Question

What kind of mirror can have a focal length of, −20 cm?

Solution

A concave mirror can have a focal length of -20 cm. The reason being, a concave mirror has a negative focal length(​according to the 'new cartesian sign convention').

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Solution What Kind of Mirror Can Have a Focal Length Of, −20 Cm? Concept: Reflection of Light - Image Formation by Spherical Mirrors - Concave Mirror.
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