Please answer to this

1. Reflection is the phenomenon is which incident light bounce back to the same medium. (Option b)
2. According to laws of reflection, angle of incidence= angle of reflection (option a)
3. The concave mirror converges the light falling on it. (Option A)
4. When object is placed at focus in front of a concave mirror, the image will be formed on infinite (option d)
5. The distance object creates an image at focus, when placed in front of a concave mirror, so option a is correct.

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