Chapter Nine: Ray Optics and Optical Instruments
This worksheet assesses understanding of fundamental concepts in ray optics, including reflection, refraction, lenses, mirrors, and optical instruments. Total marks: 40.
Section A: One-Word Answers
Provide the correct term or short phrase for each of the following questions.
What is the phenomenon of a light ray changing its path when it enters another transparent medium?
What is the straight line path along which light travels called?
What is a bundle of light rays called?
What is the name of the point where parallel rays appear to diverge from after reflection from a convex mirror?
What is the SI unit for the power of a lens?
Section B: True or False
State whether each statement is True or False. Provide a brief reason for your answer.