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SS3: PHYSICS - 2ND TERM

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  1. Magnetic Field
    10 Topics
    |
    1 Quiz
  2. Magnetic Field
    5 Topics
    |
    1 Quiz
  3. Electromagnetic Field
    4 Topics
    |
    1 Quiz
  4. Electromagnetic Induction
    7 Topics
    |
    1 Quiz
  5. The Transformer
    5 Topics
    |
    1 Quiz
  6. Simple A.C Circuit
    11 Topics
    |
    1 Quiz
  7. Models of the Atom
    2 Topics
    |
    1 Quiz
  8. Radioactivity
    3 Topics
    |
    1 Quiz
  9. Half Life
    8 Topics
    |
    1 Quiz
  10. Energy Quantization
    5 Topics
    |
    1 Quiz
  11. Photoelectric Effect
    6 Topics
    |
    1 Quiz
  12. Wave Particle Paradox
    6 Topics
    |
    1 Quiz

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SS3: PHYSICS – 2ND TERM Photoelectric Effect Uses of Photocells
Lesson 11, Topic 5
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Uses of Photocells

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Topic Content:

  • Uses of Photocells

Photocells are used in

i. Photometers

ii. Burglar alarms

iii. Automatic doors

iv. Television cameras

v. Counting operations

vi. Sound production from film tracks

photocell
Photocell

When light of appropriate frequency falls on the cathode photosensitive surface, 

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