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Give the definition of photoelectric thr...

Give the definition of photoelectric threshold frequency and stopping, potential. Draw the variation of stopping potential vs. incident frequency

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UNITED BOOK HOUSE-MODEL PAPER SET-15-EXERCISE
  1. Write down important properties of electromagnetic waves.

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  2. Show that the energy of (He2^4) for first excited state is numerically...

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  3. There is only one electron in H1^1 atom but why we observe numerous nu...

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  4. Explain— Electric field lines cut the equipotential surface normally.

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  5. An electric dipole is kept in the uniform electric field vecE . If vec...

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  6. Four charges of + 2 xx10^-9c, +,1 xx 10^-9c,-2xx10^-9c and + 3 xx10^-9...

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  7. Establish the relation between magnetic permeability and magnetic susc...

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  8. In a Young's double slit experiment, two wavelengths of 500nm and 700 ...

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  9. Write down the relationship between wavelength and energy of a photon?...

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  10. Give the definition of photoelectric threshold frequency and stopping,...

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  11. If 15 kV is the P.D. between the cathode and target and it produces co...

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  12. What is a NAND gate?

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  13. Obtain the balanced conditon of Wheatstone bridge from Kirchhoff’s Law...

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  14. A potential difference of 5 V is applied across a conductor of length ...

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  15. 5V potential difference is applied to a conductor of Length 10cm.If th...

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  16. A circular disc is rotating about its natural axis with angular veloci...

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  17. If R =25Omega and inductive reactance=50Omega in an A.C circuit, then ...

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  18. In an LCR circuit R= 10Omega, L= 50mH & C=5muF.What is the series reso...

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  19. State the Huygens Principle for Physical Op'tics

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  20. A myopic person can not see objects lying beyond 2m. What is the power...

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