If a line segment of length 10 cm is reflected in a line of symmetry (mirror), then its reflection is a line of length ___ .

5 cm

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10 cm

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15 cm

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20 cm

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Solution

The correct option is B
10 cm

The image formed in a plane mirror is of the same length of the object. So, the image of the line would remain a line and there would be no change in its length.

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Question 22

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