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KUMAR PRAKASHAN-RAY OPTICS AND OPTICAL INSTRUMENTS-SECTION-D (MULTIPLE CHOICE QUESTIONS (MCQs))(MCQs ASKED IN COMPETITIVE EXAMS)
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- A: Power of lens of goggles is zero. R: Radii of curvature of both...
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- A: When white light passes through lens then refraction of violet ligh...
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- A: Magnified image is obtained by microscope. R: Angular dispersio...
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- A: Magnification for convex mirror is always positive where it may be ...
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- A spherical mirror gives real image 3 times greater than object. If di...
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- Focal length of plane mirror is ......
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- A light of ray incidents normally on one side of equilateral prism. If...
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- Two thin lenses of focal lengths f1 and f2, are in contact and coaxial...
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- The colour of rays is the property of ......
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- A critical angle for a medium is 60^@. Then the refractive index of th...
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- A wavelength of a monochromatic light in vacuum is lambda . It travels...
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- An object is placed at a distance 40 cm in front of concave mirror. Fo...
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- A real object is placed at a distance f from the pole of a convex mirr...
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- For a prism of refractive index 1.732, the angle of minimum deviation ...
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- A convex lens is immersed in a liquid, whose refractive index is equal...
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- The magnifying power of a telescope is m. If the focal length of the e...
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- A plane mirror produces a magnification of ….....
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- A transparent plastic bag filled with air form a concave lens. Now, if...
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