NEET Class neet Answered
please answer this
Asked by Prashant DIGHE | 29 Jan, 2020, 10:21: PM
Expert Answer
magnitude of magnification , |m| = v/u
where v is mirror-to-image distance and u is mirror-to-object distance.
when object is at focal point, image formed at ∞ , hence magnification ∞
when object is moved away from focal point , mirror-to-object distance u is increasing.
Hence magnitude of magnification is getting decreased.
When object is at a distance 2f from mirror , magnitude of magnification is 1 .
when object is moved further its magnitude of magnification is less than one.
All these features are seen only in graph-2 ,
hence graph-2 is the correct representation of variation of magnification ,
when object is moved away from focal point
Answered by Thiyagarajan K | 30 Jan, 2020, 10:09: AM
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