Question

Q3. Answer the following questions:
1.What is the difference between regular reflection and diffused reflection of light? _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________

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2. State whether the following statement is true or false, also give reasonthe for the same.Diffused reflection means the failure of the laws of reflection of light._____________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________
3. Draw a labeled diagram showing how a plane mirror forms an image of a object placed in front of it.
4. If an object is placed at a distance of 7.5 cm from a plane mirror, how far would it be from its image?
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5. An incident ray makes an angle of 75﮲ with the surface of a plane mirror. What will be the angle of reflection?
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Answer 1

Answer:

1. Regular reflection occurs at the surface of a plane surface like a plane mirror. Reflected rays after regular reflection are parallel. Diffused reflection occurs at the surface of a rough surface like cardboard. Reflected rays after regular reflection are not parallel.

2. Diffused reflection is not due to the failure of the laws of reflection. It is caused by the irregularities in the reflecting surface.

3. ok

4. The object would be 15cm far away from its image if it is placed at a distance of 7.5cm from the plane mirror.

5. An incident ray makes an angle of 75° with the surface of a plane mirror. What will be the angle of reflection? The angle made by the normal will be 90-75= 15.
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