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Refractive index for a material for infr...

Refractive index for a material for infrared light is

A

Equal to that of ultraviolet light

B

Less than for ultraviolet light

C

Equal to that for red colour of light

D

Greater than that for ultraviolet light

Text Solution

Verified by Experts

The correct Answer is:
B
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ERRORLESS -RAY OPTICS-SET
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  4. An object is placed at a point distant x from the focus of a convex le...

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  5. The diameter of the eye-ball of a normal eye is about 2.5 cm . The pow...

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  11. When the rectangular metal tank is filled to the top with an unknown l...

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  12. A concave mirror and a converging lens (glass with mu = 1.5) both have...

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  13. A ray of light strikes a plane mirror M at an angle of 45^(@) as shown...

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  14. A slab of glass, of thickness 6 cm and refractive index 1.5, is placed...

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  15. A point source of light S is placed at the bottom of a vessel containi...

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  16. A point object is placed midway between two plane mirrors a distance a...

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  17. A convergent beam of light is incident on a convex mirror so as to con...

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  18. PQR is a right angled prism with other angles as 60^(@) and 30^(@). Re...

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  19. When a ray is refracted from one medium to another, the wavelength cha...

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