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wrtie down the conditions for constructive interference.

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Write the condition for destructive interference.

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UNITED BOOK HOUSE-QUESTION PAPER 2019-EXAMPLE
  1. Write down the symbol and truth table OR gate.

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  2. Convert the binary number 10011 into decimal equivalent .

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  3. Why are Si and Ga-As perferred materials for solar cell?

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  4. Transistor-what does it mean ?

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  5. When an n-p-n transitor is used as an amplifier?

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  6. In a potetiometer experiment why is ti necessary to use a long wire? ...

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  7. In a meter bridge when the resistance in the lift gap, is 2Omega and a...

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  8. What is shunt?

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  9. Explain wheatstone bridge principle with the help of Kirchhofffs law D...

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  10. 36 cells each of internal reistance 0.5Omega and emf1.5V each are used...

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  11. Lenz's law of electromagnetic induction corresponds to

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  12. .What is eddy current?

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  13. What is meant by 'self-inductance of coil is 1 H '?

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  14. What is meant by self-induction of a solenoid.

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  15. Eatablish an expression for self-inductance of a solenoid.

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  16. An a.c. source generating voltage e=e@ sinomegat is connected to a cap...

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  17. Determine the resonant frequency omegarof a series LCR circuit with L=...

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  18. Two convex lenses of focal lengths f1 and f2 respectively are placed ...

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  19. wrtie down the conditions for constructive interference.

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  20. The refractive index of glass is 1.55 what is its polarising angle? De...

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