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Light ray bends when it travels from one...

Light ray bends when it travels from one medium to another medium because ......

A

frequency changes

B

refractive index changes

C

speed changes

D

amplitude changes

Text Solution

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The correct Answer is:
A, C, D
Speed of light depends on type of medium.
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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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  4. Lens is kept nearer to eye to observe a small thin net of wire at 8 cm...

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  5. Flint glass lens is made of refractive index 1.5. When it is placed in...

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  6. The leaf which has only green pigament is given light of 0.6328 um wav...

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  8. Intensity of point-like source at 1000 m is I. it is changed to 16I, t...

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  9. Focal lengths of objective and eye-piece of microscope is 1.6 cm and 2...

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  10. Power of a convex lens of refractive index 3/2 is 2.5 D in air. If it ...

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  11. The surface which doesn.t reflect is given incidence light with 18 W//...

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  12. For concave mirror, image obtained at d2 from focus for object at d1 f...

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  13. Object of small length 1 is placed on the axis of concave mirror of fo...

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  14. Two lenses of focal lengths -20 cm and + 10 cm are conneceted to form ...

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  15. A: Stars twinkle in sky at night, planets don.t. R: Volume of star...

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  16. A: Owl can move easily at night time. R : There are so many rods i...

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  17. A: Red substance seems to be black in presence of yellow light. R:...

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  18. A: Transperency of glass decreases if its surface becomes rough. R...

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  19. A: Diamond glitters. R: Diamond doesn.t absorb sun light.

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  20. A: Resolution of telescope is high if diameter of objective is large. ...

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