Question

please answer this question if you know the answer then only answer else reported answer correctly​

Answer 1

1st part is the answer.

Answer 2

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9. Identify the incident ray and reflected ray.

$\: \: \: \: \: \: \: \: \: \: \: \: \: \:$ "Given diagram"

O PO : OQ

O QO : OP

O None of these

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● PO : OQ ( Option A )

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• In option A ,it is saying that PO ( incident ray ) is equal to the OQ ( reflected ray )

• According to 2nd law of reflection, we can conclude that incident ray and reflected ray are always equal. So, at the spot option C ( None of these will not be correct.)

• In option A and option B , now we also know that incident ray first strikes and then the reflected ray reflects. So, Option B (QO : OP) will not be right.

• Left Option A which will be correct.

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$\huge\rm { _!! Golden \: key \: points !_! }$

• Incident ray - The ray of light that strikes the surface is called incident ray.

• Reflected ray - The ray of light which reflects back after the incident ray strikes is called reflected ray.

• Normal - The line to the point where light strikes is called normal.

• Angle of incidence $i$ - The angle between incident ray and normal.

• Angle of reflection $r$ - The angle between reflected ray and normal.

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