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What is modulation? Write down it utilit...

What is modulation? Write down it utility.

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UNITED BOOK HOUSE-MODEL PAPER SET-04-EXERCISE
  1. The potential difference between two ends of an electric bulb is reduc...

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  2. Name the physical quantity whose S.I. unit is J/C. Is it a scalar or a...

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  3. Two protons P and Q moving with the same speed enter magnetic fields B...

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  4. What is microwave? Why Is this wave used in RADAR?

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  5. Derive the expression of 1st Bohr orbit applying Bohr’s 'theory.

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  6. The half life of radium is 1600 years. In how many years will 8 xx10^-...

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  7. What is modulation? Write down it utility.

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  8. What is quantization of charge? Establish the expression of electric p...

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  9. The electric field in a region is radially outward with a magnitude E=...

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  10. The equivalent capacitance are Cs and Cp when two.capacitors are conn...

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  11. The cyclotron frequency of a cyclotron is 10 MHz. What will be the eff...

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  12. The focal length of a-convex lens is f. Show that if the object dista...

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  13. Calculate energy of an electromagentic wave of wave length 0.0242 over...

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  14. What is the originÿof characteristics X-ray? When an electron of a hyd...

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  15. There is no electrons, in the nucleus but how does it emitt beta part...

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  16. What is OR gate? Give its truth table.

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  17. Sum in binary. (10110)2 + (101 11)2.

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  18. Define alpha(dc) and beta(dc) of a transistor. Write the relation betw...

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  19. Prove V(r.m.s)= V0/sqrt2in an a.c. circuit. Where V0 = the peak value ...

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  20. Derive the relation among apparent depth, real depth and refractive in...

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