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Ray optics is valid, when characteristic...

Ray optics is valid, when characteristic dimensions are

A

Mush smaller than the wavelength of light

B

Of the same order as the wavelength of light

C

Of the order of one millimeter

D

Much larger than the wavelength of light

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The correct Answer is:
D
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AAKASH INSTITUTE ENGLISH-RAY OPTICS AND OPTICAL INSTRUMENTS-ASSIGNMENT (SECTION - C)
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  10. Which of the following is incorrect?

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  11. A double concave thin lens made out of glass (mu=1.5) have radii of cu...

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  12. A convex lens forms a real image 16 mm long on a screen. If the lens i...

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  15. An object is placed in front of two convex lenses one by one at a dist...

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  16. If R(1)andR(2) are the radii of curvature of the spherical surfaces of...

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  17. The focal length of a thin lens in vacuum is f. If the material of the...

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  18. An astronomical telescope of ten-fold angular magnification has a leng...

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