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प्रश्न
What are cathode rays?
उत्तर
A cathode ray is a stream of electrons that are seen in vaccum tubes. It is called a “cathode ray” because the electrons are being emitted from the negative charged element in the vaccum tube called the cathode.
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संबंधित प्रश्न
The charge of cathode rays is ______.
Write the properties of cathode rays.
Discuss the Millikan’s oil drop experiment to determine the charge of an electron.
Consider two hydrogen atoms HA and HB in ground state. Assume that hydrogen atom HA is at rest and hydrogen atom HB is moving with a speed and make head-on collide on the stationary hydrogen atom HA. After the strike, both of them move together. What is the minimum value of the kinetic energy of the moving hydrogen atom HB, such that any one of the hydrogen atoms reaches one of the excitation state?
