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A concave mirror has radius of curvature 2 m. The light from a distance source is incident on the mirror. The distance of image of the source from the mirror is

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Important Questions on Ray Optics and Optical Instruments

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Gamma Question Bank for Engineering Physics>Chapter 26 - Ray Optics and Optical Instruments>EXERCISE 9.2>Q 8
Select the correct statement
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Gamma Question Bank for Engineering Physics>Chapter 26 - Ray Optics and Optical Instruments>EXERCISE 9.2>Q 9
What can be the minimum distance between an object and its real image formed by a concave mirror of focal length 10 cm ?
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Gamma Question Bank for Engineering Physics>Chapter 26 - Ray Optics and Optical Instruments>EXERCISE 9.2>Q 10
An object is placed at distance 10 cm from the focus of a concave mirror and image is at distance 10 cm from focus. The focal length of mirror is
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Gamma Question Bank for Engineering Physics>Chapter 26 - Ray Optics and Optical Instruments>EXERCISE 9.2>Q 11
Which of the following graph is best representation of variation of magnification m with distance of object u for a concave mirror of focal length 10 cm if image is virtual?
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Gamma Question Bank for Engineering Physics>Chapter 26 - Ray Optics and Optical Instruments>EXERCISE 9.3>Q 12

In the shown figure ∠r is equal to

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Gamma Question Bank for Engineering Physics>Chapter 26 - Ray Optics and Optical Instruments>EXERCISE 9.3>Q 13
A ray of light strikes a glass plate at an angle 60°. If reflected and refracted rays are perpendicular to each other, then refractive index of the glass will be
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Gamma Question Bank for Engineering Physics>Chapter 26 - Ray Optics and Optical Instruments>EXERCISE 9.3>Q 17
To an underwater swimmer at depth 12 below the surface of water a bird at height 18 m above the surface of water appears at height h above the surface of water, then h is equal to
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Gamma Question Bank for Engineering Physics>Chapter 26 - Ray Optics and Optical Instruments>EXERCISE 9.3>Q 18
If a parallel beam of light of circular cross-section having radius 10 mm falls on the surface of glass slab μ=32 at an angle 30° with the surface of slab, then the radius of refracted beam is about