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Wednesday, 04 June 2014 16:52

P2-02: PHOTOELECTRIC EFFECT IN ZINC - ARC LAMP

p2-02a

 

Additional Info

  • ID Code: P2-02
  • Purpose: Demonstrate the emission of photoelectrons.
  • Description:

    In this experiment the arc lamp acts both as a source of ultraviolet radiation for discharging the zinc plate and as a bright light to shadow project the apparatus.

    A zinc plate connected to an electroscope and charged positive will not discharge under the influence of ultraviolet radiation. When the plate is charged negative, however, light from the arc lamp, which contains much UV, will discharge the plate, as indicated by the electrometer. A 1/8" glass plate inserted into the light from the arc lamp prevents passage of UV and the discharge ceases. Removing the glass plate allows the discharge to continue.

  • Availability: Available
  • Loc codes: P2, OM1, LS1, J1
Read 817 times Last modified on Tuesday, 03 October 2017 12:31
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