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प्रश्न
Draw a simplified labelled diagram of a hot cathode ray tube.
उत्तर
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संबंधित प्रश्न
How much is this energy in MeV? (Speed of light = 3 × 108 m/s)
One eV (electron volt) of nuclear energy is equivalent of:
(a) 1.6 × 10−14 J
(b) 1.6 × 10−12 J
(c) 1.6 × 10−19 J
(d) 1.6 × 10−13 J
The disposal of waves produced in a nuclear power plant poses a big problem because it is:
(a) too heavy
(b) highly inflammable
(c) extremely foul smelling
(d) highly radioactive
A nuclear reaction is represented by the equation:
`""_1^2H+_1^2H->_2^3He+xc+E`
What does E represent?
Which one of the following statements about alpha and beta particles is
correct?
Write down the Einstein's mass-energy equivalence relation, explaining the meaning of each symbol used in it.
A certain nucleus X has a mass number 15 and atomic number 7. Find the number of neutrons. The nucleus X losses one β-particle and Express the change and write the symbol of the new nucleus.
An isotope of uranium is 92Y238, i.e., it has mass number 235 and atomic number 92.
Find the number of electrons in the neutral atom of this isotope.
In an atomic power station, nuclear energy is converted into electrical energy.
Give scientific reasons.
It is absolutely necessary to control the fission reaction in nuclear power plants.
