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What phenomenon is depicted in the given diagram? Explain the phenomenon and label A and B in the diagram.
The phenomenon depicted in the diagram is known as dispersion of light.
When a ray of white light passes through the prism, it asplits into seven colours of light rays.
A : White light beam
B : spectrum formed on splitting up of white light.
Mention against each of the following whether regular or diffused reflection will take place when a beam of light strikes. Justify your answer in each case.
Mirror
Mention against each of the following whether regular or diffused reflection will take place when a beam of light strikes. Justify your answer in each case.
Piece of paper
State the laws of reflection.
Describe an activity to show that the incident ray, the reflected ray and the normal at the point of incident lie in the same plane.
A person 1 m in front of a plane mirror seems to be _____ m from his image.
If you touch your _____ ear with right hand in front of a plane mirror it will be seen in the mirror that your right ear is touched with _____.
Fill in the blanks:
The size of the pupil becomes _________ when you see in dim light.
Night birds have ________ cones than rods in their eyes.
Angle of incidence is equal to the angle of reflection
Image formed by a plane mirror is
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