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The distance between the eye and the fee...

The distance between the eye and the feet of a boy is 1.5 m. He is standing on a flat ground and a vertical plane mirror M is placed at a distance of 1.2 m from the boy, with its lower edge at a height of 0.3 m from the ground. Now the mirror is tilted about is lower edge as shown in the Figure. Find maximum value of angle `theta` for which the image of feet remains visible to the boy. [Take `sin 15^(@) = (1)/(4)]`

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The correct Answer is:
`15^(@)`
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