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An Object is Placed 20 Cm in Front of a Plane Mirror. the Mirror is Moved 2 Cm Towards the Object. the Distance Between the Positions of the Positions of the Original and Final Images Seen in the Mirror Is: (A) 2 Cm (B) 4 Cm (C) 10 Cm (D) 22 Cm - CBSE Class 10 - Science

ConceptLight Reflection and Refraction Introduction

Question

An object is placed 20 cm in front of a plane mirror. The mirror is moved 2 cm towards the object. The distance between the positions of the positions of the original and final images seen in the mirror is:

(a) 2 cm
(b) 4 cm
(c) 10 cm
(d) 22 cm

Solution

(b) 4 cm

Distance between original image and final image = distance the mirror moved + same distance the image moved

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Solution An Object is Placed 20 Cm in Front of a Plane Mirror. the Mirror is Moved 2 Cm Towards the Object. the Distance Between the Positions of the Positions of the Original and Final Images Seen in the Mirror Is: (A) 2 Cm (B) 4 Cm (C) 10 Cm (D) 22 Cm Concept: Light Reflection and Refraction Introduction.
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