When object is placed before plane mirror at a distance of 10cm the distance of image from the mirror will be?

Option 4 : 10 cm behind the mirror

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The correct answer is 10 cm behind the mirror.

Key Points

• As we can see from the image, the image formed by the plane mirror is at the same distance behind the mirror as the object is in front of the mirror.
• So, according to question,
• Distance of object from the mirror (front) = 10cm
• So the image will be formed behind the mirror at the distance = Distance of object from the mirror (front) = 10 cm.

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If an object is placed at a distance of 10 cm in from of a plane mirror, how far would it be from its image?

It will be 20 cm away from its image. This is because the distance of the plane mirror from the object is equal to its distance from the image. 

Concept: Refraction of Light

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CBSE 7 - Science

Asked by Topperlearning User | 15 May, 2015, 06:53: AM

If an object is placed at a distance of 10 cm in from of a plane mirror, how far would it be from its image?

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