A ray of light strikes a plane mirror at an angle of incidence of 35°. If the mirror is rotated through 10°, through what angle is the reflected ray rotated?

Ades0la

12 years ago

Hmmn, according to the explanation given, the answer should be D.The angle through which it is rotated is 10 degrees and not 35 degrees.

Myschool Blessing

10 years ago

Thanks for your contributions. Correction has been made, the correct answer is D.

OLUMORINDEBORAH

4 months ago

noted

lisprince

11 years ago

THE ANSWER IS D COS 2 MULTIPLIED BY 10 IS 20

Award0001

2 years ago

Be kind enough to note that that the reflected ray is rotated through ×2 of the mirror rotation angle and not the angle of incidence

Thiw means that the angle you should multiply by 2 is the angle of rotation

s3eph26

5 months ago

nice
👌

PandD

2 months ago

Wrong

ahmadfuzi

1 year ago

GHJGJH

PandD

2 months ago

Angle of incident =angle of refraction

PandD

2 months ago

Sneills law

PandD

2 months ago

So
I =35
R =35
But they said it is then rotated
Smart yu
35+10
45°

PandD

2 months ago

🤔🤔 Or do they mean
I(rotated) =2r(rotated)
So
10°=2(10)
Since
I = r
But they asked for the angle of reflection ROTATED
I=2r
10=2(10)
10=20

PandD

2 months ago

🤔🤔 Or do they mean
I(rotated) =2r(rotated)
So
10°=2(10)
Since
I = r
But they asked for the angle of reflection ROTATED
I=2r
10=2(10)
10=20
Angle of rotation for reflection
=20°

Isaac.Newton

11 years ago

The angle being multiplied by 2 stands for d angle of incidence.

Prosper1122

3 years ago

bb