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What is modulation ? Write the block dia...

What is modulation ? Write the block diagram of the receiver.

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Modulation : The process of superimposing the low frequency message signal on a high frequency wave is known as modulation.
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SUNSTAR PUBLICATION-II PUC PHYSICS (ANNUAL EXAM QUESTION PAPER MARCH - 2019)-PART - A
  1. Distinguish between n-type and p-type semiconductos.

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  2. Derive an expression for electric potential energy of a systemm of cha...

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  3. Obtain an expression for the force between two straight parallel condu...

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  4. Distinguish between .dia. and .ferro. magnetic materials.

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  5. Mention the three types of energy loss in a transformer.

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  6. Write three experimental observation of photoelectric effect.

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  7. Write the three postulates of Bohr.s atomic model.

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  8. Explain the .Conduction band. .Valence band. and .Energy gap. in semi...

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  9. What is modulation ? Write the block diagram of the receiver.

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  10. Write the expression for electric field intensity at any point outside...

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  11. Obtain an expression for the equivalent emf and internal resistance of...

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  12. Derive the expression for magnetic field at a point on the axis of a c...

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  13. Derive an expression for the impedance of a series LCR, circuit, when ...

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  14. Derive th lens maker's formula.

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  15. What is amplification? With a circuit diagram, explain the working of ...

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  16. In a circular parallel plate capacitor radius of each plate is 5 cm an...

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  17. Two resistors are connected in series with 5V battery of negligible in...

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  18. A conductor of length 3m moving in a uniform magnetic field of strengt...

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  19. In a Young.s double slit experiment wave length of light used is 5000 ...

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  20. Half life of U-238 undergoing alpha decay is 4.5 xx 10^(9) years. What...

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