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A plane mirror is placed horizontally on level ground at a distance of 60 m from the foot of a tower. The top of the tower and its image in the mirror subtend an angle of 90o at the eye. Calculate the height of the tower. |
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Answer» Answer: Since the TOP of the tower and its image in the MIRROR subtends at the eye makes an angle of 90 o , the other TWO angles at the beam and mirror interface will be 45 o each. Hence we have tan45 o = OY XY
⟹1= 60 XY
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