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Questions and Answers
What happens to the focal length of a lens when it is placed in a medium of higher refractive index?
Which of the following phenomena is responsible for the formation of a rainbow?
What happens to the image distance when an object is placed between the focus and the optical center of a convex lens?
Study Notes
Lens and Refractive Index
- When a lens is placed in a medium of higher refractive index, its focal length decreases.
Rainbow Formation
- The phenomenon responsible for the formation of a rainbow is refraction, combined with dispersion and internal reflection.
Convex Lens Image Distance
- When an object is placed between the focus and the optical center of a convex lens, the image distance is greater than the object distance.
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Description
Test your understanding of ray optics with this class 12 quiz. Answer questions about focal length in different mediums, the formation of rainbows, and image distance in convex lenses. Sharpen your knowledge of these key concepts in optics.
