> Q. A clock hung on a wall has marks instead of numerals on its dial. On the adjoining wall, there is a plane mirror and the image of the clock in the mirror indicates the time $ 7:10 $ . Then the time on the clock is – LIVE ANSWER TODAY

Q. A clock hung on a wall has marks instead of numerals on its dial. On the adjoining wall, there is a plane mirror and the image of the clock in the mirror indicates the time $ 7:10 $ . Then the time on the clock is

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A clock hung on a wall has marks instead of numerals on its dial. On the adjoining wall, there is a plane mirror and the image of the clock in the mirror indicates the time $ 7:10 $ . Then the time on the clock is

Solution:

In a plane mirror the image undergoes depth inversion hence, the time on the image is as much ahead of 12 h 0 min as the time on actual clock is behind 12 h 0 min. Time on the actual clock = 7 h 10 min Time on the image clock = (12 h and 0 min) $ – $ (7 h and 10 min) = 4 h and 50 min

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