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What is meant by half life of a radioact...

What is meant by half life of a radioactive element?

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UNITED BOOK HOUSE-QUESTION PAPER 2019-EXAMPLE
  1. Light rays of wavelength lambda and lambda/2 are incident on a a photo...

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  2. If the value of Rydberg constant of hydrogen is 109737 cm^-1 determine...

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  3. What is meant by half life of a radioactive element?

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  4. Wht are the majority and minority carriers in a p-type semiconductor?

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  5. Write down the symbol and truth table OR gate.

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  6. Convert the binary number 10011 into decimal equivalent .

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

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  8. Transistor-what does it mean ?

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

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

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

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  12. What is shunt?

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

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  14. 36 cells each of internal reistance 0.5Omega and emf1.5V each are used...

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  15. Lenz's law of electromagnetic induction corresponds to

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  16. .What is eddy current?

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

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

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

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

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