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If an object is placed at the focus of a...

If an object is placed at the focus of a concave mirror, where is the image formed?

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BINA LIBRARY-ELECTRONIC DEVICES-EXERCISE
  1. Name the type of mirror which always forms a virtual and diminished im...

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  2. Why is convex mirror used as a rearview mirror in vehicles?

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  3. If an object is placed at the focus of a concave mirror, where is the ...

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  4. Write two difference between real and virtual image?

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  5. What is a photodiode? Explain its working principle.

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  6. What is a solar cell?

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  7. The angle between an incident ray and the mirror is 40°. What is the a...

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  8. The angle between an incident ray and the mirror is 40°. what is the a...

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  9. The angle between an incident ray and the mirror is 40°. What is the t...

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  10. Explain the relationship between energy and power.

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  11. Distinguish between n type and p type semiconductor.

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  12. Draw the diagram to show the energy bands of a n type and p type semic...

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  13. With the help of suitable diagram, explain the formation of depletion ...

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  14. With the help of suitable diagram, explain the formation of depletion ...

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  15. Why does a convex mirror is said to have a virtual principal focus?

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  16. Explain why a ray of light passing through the centre of curvature of ...

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  17. Draw circuit diagram to describe the working of a p-n junction as full...

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  18. What is LED ? State two advantages of LED over incandescent lamps.

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  19. What is breakdown voltage of a Zener diode? Explain its use as a volta...

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  20. What is the nature of the image formed by a concave mirror if the magn...

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