Answers

2015-09-17T07:53:01+05:30
A paraxial ray is a ray hat makes a small angle  to the optical axis of the system,and lies close to the axis throughout the system
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2015-09-17T12:22:06+05:30
The light rays which are very close to the principle axis when a parallel beam of light is incident on a spherical mirror is called as paraxial light rays
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