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प्रश्न
How is a zinc sulphide screen affected when a cathode ray beam strikes it?
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उत्तर
When a cathode ray beam strikes a zinc sulphide screen, a bright spot is seen on the screen.
संबंधित प्रश्न
Answer the following questions based on a hot cathode ray tube
Name the charged particles
What are free electrons?
State the energy conversion taking place in a cathode ray tube
What do you mean by Atomic mass?
Name two radioactive substances.
A radioactive source emits three types of radiations.
Name the radiation which has the highest ionizing power.
State two characteristics of the substance used as thermionic emitter.
Justify with reason, whether the following nuclear reactions are allowed or not.
\[\ce{^A_Z X -> ^A_{Z + 1}Y + ^0_{-1}β}\]
An electrons emitter must have how much work function and melting point.
The activity of a certain radionuclide decreases to 15 percent of its original value in 10 days. What is its half life?
[ln (0.15) = -1.9]
