A small object is placed $10 c m$ in front of a plane mirror. If you stand behind the object $30 c m$ from the mirror and look at its image, the distance focused for your eye will be:

60

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20

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40

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80

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Solution

The correct option is C $40$ cm
We see from the figure that the observer and the image is $10 + 30 = 40 c m$

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A small object is placed 10 cm in front of a plane mirror. If you stand behind the object 30 cm from the mirror and look at its image, the distance focused for your eye will be:

The correct option is C 40cmWe see from the figure that the observer and the image is 10+30=40cm

A small object is placed $10 c m$ in front of a plane mirror. If you stand behind the object $30 c m$ from the mirror and look at its image, the distance focused for your eye will be:

The correct option is C $40$ cm
We see from the figure that the observer and the image is $10 + 30 = 40 c m$