SHORT ANSWER TYPE QUESTIONS
What is reflection of light?
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2 What type of image is formed by a plane mirror ?
What type of reflections forms an image ?
How is rainbow formed ?
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5. State the laws of reflection.
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Answers
Answer:
1. Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. Common examples include the reflection of light, sound and water waves.
2. The image formed by a plane mirror is always virtual (meaning that the light rays do not actually come from the image), upright, and of the same shape and size as the object it is reflecting. A virtual image is a copy of an object formed at the location from which the light rays appear to come.
3. The law of reflection states that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection.
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Answer:
1) The bouncing back of light from a smooth surface is called reflection
2) The image formed by a plane mirror is virtual and erect.
Laws of reflection:-
1. Angle of incidence = Angle of reflection
2. The incident ray, reflected ray and the normal at the point of incidence, all lie in the same plane