Light, optics, and everyday phenomena rainbows, vision) MCQs in Everyday Science

By: Prof. Dr. Fazal Rehman | Last updated: May 19, 2025

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1. : What phenomenon causes a rainbow to form?





2. : Which part of the eye is responsible for focusing light onto the retina?





3. : When light travels from air into water, what happens to its speed?





4. : What type of lens is used to correct farsightedness (hyperopia)?





5. : What causes the colors in a rainbow?





6. : In optics, what does the term “refraction” refer to?





7. : Which of the following is NOT a type of lens?





8. : What causes the “redshift” observed in the light from distant galaxies?





9. : What is the primary cause of the blue color of the sky?





10. : What is the critical angle in optics?





11. : How does a concave mirror affect parallel rays of light?





12. : Which type of lens would you use to correct nearsightedness (myopia)?





13. : What is the purpose of the pupil in the human eye?





14. : What is the result of the refraction of light in a prism?





15. : What is the phenomenon called when light bends around the edge of an object?





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