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Ray Optics and Optical Instruments Quiz

Class XII
Physics
Ray Optics and Optical Instruments
14 questions
MEDIUM

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Preview questions

1. What is the principle behind the formation of images by a plane mirror?

Reflection of light · Refraction of light · Diffraction of light · Dispersion of light

2. Which of the following lenses is used to correct myopia?

Convex lens · Concave lens · Bifocal lens · Cylindrical lens

3. What is the focal length of a concave mirror if the radius of curvature is 30 cm?

15 cm · 30 cm · 60 cm · 45 cm

4. In a convex lens, parallel rays of light converge at the:

Focal point · Optical center · Principal axis · Vertex

5. What type of image is formed by a concave mirror when the object is placed beyond the center of curvature?

Virtual and upright · Real and inverted · Real and upright · Virtual and inverted

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