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What are electromagnetic waves? Write do...

What are electromagnetic waves? Write down the relation connecting electric vector, magnetic vector and the direction of propagation of an electromagnetic wave.

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UNITED BOOK HOUSE-MODEL PAPER SET-08-EXERCISE
  1. A long wire carries a current of 90 A in the east to west direction. W...

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  2. In a piece of ancient wood C -14 and C - 12 are present. the ratio of...

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  3. What are electromagnetic waves? Write down the relation connecting ele...

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  4. A plane electromagnetic wave is moving along X-direction in free space...

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  5. On the X-Y plane two point charges "+q and -q are placed at positions ...

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  6. What is potential gradient? The electric potential is found to depend ...

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  7. The parallel plate capacitors of capacitances C and 2C are connected i...

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  8. Write down the Biot - Savart law in the vector form. Hence find the ma...

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  9. What is the time taken by light to travel through a glass slab of thic...

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  10. Write down the condition for minimum deviation in prism.

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  11. Calculate the refracting angle of a prism (mu = sqrt2) if a ray of lig...

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  12. In double slit experiment, the distance between two slits is 0.6 mm an...

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  13. A short sighted person can see objects at 20cm from his eyes. What typ...

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  14. What is threshold frequency in connecting with photoelectric effect?

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  15. Will photoelectrons be emitted by copper plate of work function 4.4eV ...

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  16. Show that for an electron laccelerated by a potential difference of V-...

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  17. Show that kinetic energy of an electron in the first Bohr orbit is num...

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  18. Wahat is a p-n junction diode? Draw the circuit diagram of a full wav...

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  19. What is a photodiode? Draw theI-V characteristic curve of a photodiode...

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  20. Prove that current density of a metallic conductor is directly proport...

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