Sushweta has to send a laser signal to Garima. But she finds out that the signal misses Garima by $4^{0}$ . She asks Himanshu to rotate the mirror.

By what angle should Himanshu rotate the mirror so that the signal reaches to Garima?

2⁰ in clockwise direction

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4⁰ in anti – clockwise direction

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4⁰ in clockwise direction

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2⁰ in anti – clockwise direction

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Solution

The correct option is D
2⁰ in anti – clockwise direction

From the figure, it is clear that if you rotate mirror by $1^{0}$ , the light ray will rotate by $2^{0}$ . Hence, we need to rotate mirror by $2^{0}$ in anti – clockwise direction.

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Similar questions

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Sushweta has to send a laser signal to Garima. But she finds out that the signal misses Garima by 40. She asks Himanshu to rotate the mirror. By what angle should Himanshu rotate the mirror so that the signal reaches to Garima?

The correct option is D 20 in anti – clockwise direction From the figure, it is clear that if you rotate mirror by 10, the light ray will rotate by 20. Hence, we need to rotate mirror by 20 in anti – clockwise direction.

Sushweta has to send a laser signal to Garima. But she finds out that the signal misses Garima by $4^{0}$ . She asks Himanshu to rotate the mirror.

By what angle should Himanshu rotate the mirror so that the signal reaches to Garima?

The correct option is D
2⁰ in anti – clockwise direction

From the figure, it is clear that if you rotate mirror by $1^{0}$ , the light ray will rotate by $2^{0}$ . Hence, we need to rotate mirror by $2^{0}$ in anti – clockwise direction.