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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