PU CSS 2026 Geometrical Optics Free Quiz 3

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PU CSS 2026 Geometrical Optics Free Quiz 3

PU CSS Quiz

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Answered: 0 / 7

Remaining: 7

Navigator 7 Q

General

General 7 MCQs

21. What is the mirror formula?

A. 1/f = 1/v - 1/u B. 1/f = 1/u - 1/v C. 1/f = 1/v + 1/u D. 1/f = 1/u - 1/v

22. What is the formula for magnification in mirrors?

A. m = v/u B. m = u/v C. m = -u/v D. m = -v/u

23. Where are concave mirrors commonly used?

A. Convex mirrors B. Concave mirrors C. Plane mirrors D. Parabolic mirrors

24. What type of lenses are used in a compound microscope?

A. Two convex lenses B. Two concave lenses C. One convex and one concave lens D. Only one lens

25. What is the formula for magnifying power of a simple microscope?

A. M = D/f B. M = f/D C. M = 1 + D/f D. M = D/f²

26. What is the formula for angular magnification of a telescope?

A. M = fₑ/f₀ B. M = f₀ + fₑ C. M = f₀ - fₑ D. M = f₀/fₑ

27. What type of image does the human eye form on the retina?

A. Real, inverted image B. Virtual, inverted image C. Real, upright image D. Virtual, upright image

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