Question

a convex mirror kept on the v shaped stand a person is standing in front at a distance of 20cm and he found his image at distance of 10cm .calculate the focal length of mirror
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Answer 1

Answer:

Solution 1

As ray of light falls normally on mirror, this means that angle of incidence is 0o. From second law of reflection, we know that angle of incidence is equal to angle of reflection. So, angle of reflection will also be zero. Therefore, the light ray will be reflected back along the same path.

Step-by-step explanation:

Answer 2

Answer:

As ray of light falls normally on mirror this means that Angle of incident is 0.

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from second law of reflection,we know that the angle of incidence is equal to angle of reflection.so, angle of reflection will be 0.

✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨

therefore the light ray will be reflected back along the same path.

Step-by-step explanation:

hope it's helpful