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What will be the change in focal length f of a concave mirror when immerged in a liquid of refractive index n?

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UNITED BOOK HOUSE-MODEL PAPER SET-06-EXERCISE
  1. Is neutron accelarated in a cyclotron?

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  2. What is choke?

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  3. What will be the change in focal length f of a concave mirror when imm...

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  4. Draw i—D graph for prism, i = incident angle and D = angle of deviatio...

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  5. The number of negative charge carrier in an intrinsic semiconductor is...

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  6. Is the filament of “240 V— 1000 W” bulb thicker or thinner than the fi...

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  7. Let a uniform magentic field’is active within a finite region. A charg...

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  8. The current through a circular conducting coil be doubled and the radi...

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  9. The frequency of an electromagnetic wave is 5 xx 10^19 Hz. What will b...

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  10. Explain about Carbon dating.

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  11. Electric field intensity is zero at a point. Is electric potential exi...

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  12. Find the expression of potential energy of a charge conductor.

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  13. A thin metalic sheet is placed at .the mid position between the paral...

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  14. A sensitive electric instrument is influenced by the strong electric f...

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  15. An alpha particle and a proton particle are moving on the surface of a...

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  16. What is optical fibre? An object is placed at a depth ‘d’ in a medium ...

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  17. A glass prism is diped into a liquid of refractive index greater than ...

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  18. What should be the change of angular width of central maximum in a sin...

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  19. What should be the change of angular width of central maximum in a sin...

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  20. What should be the change of angular width of central maximum in a sin...

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