Advertisements
Advertisements
प्रश्न
Which substance is used as fuel in nuclear power plants?
Advertisements
उत्तर
In a nuclear power plant, uranium or plutonium are used as fuel.
APPEARS IN
संबंधित प्रश्न
Compare and contrast bio-mass and hydro electricity as sources of energy.
What is a fuel? Give five examples of fuels.
One of the following is not a characteristic of a good fuel. This is:
(a) high calorific value
(b) no emission of smoke
(c) smooth burning
(d) high ignition temperature
Fill in the following blank with suitable word:
Splitting of a heavy nucleus into two lighter nuclei is called ........
Write Einstein's mass-energy equation. Give the meaning of each symbol which occurs in it.
State the disadvantages of nuclear energy.
In the nuclear reactor of a power plant:
how do control rods control the rate of fission?
Name five places in India where nuclear power plants are located.
Which of the following is used as a moderator in the reactor of a nuclear power station?
(a) liquid sodium
(b) boron
(c) graphite
(d) carbon dioxide
The control rods used in the reactor of a nuclear power plant are made of:
(a) steel
(b) graphite
(c) uranium
(d) boron
In a nuclear power plant, coolant is a substance:
(a) which cools the hot, spent steam to condense it back to water
(b) which transfers heat from reactor to water in heat exchanger
(c) which is boiled to make steam to turn the turbine
(d) which cools the generator coils to prevent their overheating.
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
A nuclear reaction is represented by the equation:
`""_1^2H+_1^2H->_2^3He+xc+E`
What does E represent?
The mass numbers of four elements A, B, C and D are 2, 20, 135 and 235, respectively. Which one of them will be most suitable to make:
(i) an atom bomb,
Explain why, in a nuclear reactor, the chain reaction stops if the control rods are fully inserted into the graphite.
One isotopes of uranium has a mass number of 235 and atomic number 92.
(a) What is the number of electrons in a neutral atom of this isotope?
(b) How many protons are there in the nucleus of this isotope?
(c) For another isotope of Uranium state which one of the numbers (238 or 92) changes?
(d) What is the number of protons in 238U?
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.
When a neutron is bombarded on an atom of uranium, ____________ neutrons generated in this process.
Atomic power plant in Maharashtra is ______.
