When an object is placed infront of a plane mirror then the distance between object and its image formed by the mirror is twice of its distance infront of the mirror?

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The distance between the object and its image formed by a plane mirror appears to be 24 cm. What is the distance between the mirror and the object?

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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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