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If ratio of amplitudes of two waves is 4...

If ratio of amplitudes of two waves is `4:3` then ratio of maximum and minimum intensities is —

A

`16:18`

B

`18:16`

C

`49:1`

D

`94:1`

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UNITED BOOK HOUSE-MODEL PAPER SET-10-EXERCISE
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  2. A convex glass Iens (mug = 1.5 ) has a focal length 8 cm when place in...

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  3. If ratio of amplitudes of two waves is 4:3 then ratio of maximum and m...

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  4. When Ge crystals are doped with phosphorous atom, then it becomes —

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  5. A microphone converts—

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  7. The splitting of white light into several colours on passing through a...

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  8. No two electric field lines can intersect each other. Why?

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  9. What is the value of an electron-volt?

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  10. Can there be magnets with single-pole?

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  11. What is the unit of magnetic flux?

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  12. Can we cast the image formed by a convex mirror on a screen?

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  13. What is S.I. unit of power of a lens?

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  14. What is the phase difference between any two points on the same wavefr...

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  15. Name the phenomenon which illustrates the particle nature of light.

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  16. A TV tower is 80m tall. Calculate the maximum distance upto which the ...

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  17. What is the purpose of modulating a signal in transmission?

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  18. Write down the binary addition of 101010 and 010101.

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  19. Give the symbol of NOR gate.

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  20. An object is placed in front of a convex mirror of radius or curvature...

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