A ray of light makes an angle of $20^{o}$ with the horizontal and strikes a plane mirror which is inclined at an angle $θ$ to the horizontal. The angle $θ$ for which the reflected ray becomes vertical, is?

40^{o}

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80^{o}

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35^{o}

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100^{o}

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Solution

The correct option is C $35^{o}$

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A ray of light makes an angle of 20o with the horizontal and strikes a plane mirror which is inclined at an angle θ to the horizontal. The angle θ for which the reflected ray becomes vertical, is?

The correct option is C 35o

A ray of light makes an angle of $20^{o}$ with the horizontal and strikes a plane mirror which is inclined at an angle $θ$ to the horizontal. The angle $θ$ for which the reflected ray becomes vertical, is?

The correct option is C $35^{o}$