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Name the three basic elements for commun...

Name the three basic elements for communication ?

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OSWAAL PUBLICATION-Sample Paper 8-Exercise
  1. What is a node?

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  2. What is the thin prism?

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  3. Name the three basic elements for communication ?

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  4. What are alpha particles ?

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  5. How does a diamagnetic material behave when it is cooled to very low t...

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  6. Why does a paramagnetic sample display greater magnetisation ( for the...

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  7. Write Coulomb's law in vector form and explain the terms.

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  8. When electrons drift in a metal from lower to higher potential, does i...

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  9. State Rayleight.s criterion for two close lying points on an object wh...

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  10. State Rayleight.s criterion for two close lying points on an object wh...

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  11. Why there is a need for modulation ?

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  12. Mention two uses of a capacitor.

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  13. Current in a coil falls from 2.5a to 0.0a in 0.1 second inducing an em...

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  14. what is photo diode? Mention its one use.

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  15. How is galvanometer converted into an ammeter?

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  16. Obtain the expression for the energy stored in a charged parallel plat...

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  17. If r1 and r2 represent radii of two concentric coil (r2gt gt r1) then ...

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  18. Classify metals, semiconductors and insulators on the basis of energy ...

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  19. State Brewster's law . Show that the reflected and refracted rays are ...

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  20. A parallel plate capacitor is chared to a potential difference .V. by ...

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