हिंदी

When a neutron is bombarded on an atom of uranium ____________ neutrons generated in this process.

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प्रश्न

When a neutron is bombarded on an atom of uranium, ____________ neutrons generated in this process.

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MCQ
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उत्तर

When a neutron is bombarded on an atom of uranium, 3 neutrons generated in this process.

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अध्याय 5: Towards Green Energy - Choose the correct option [पृष्ठ ५]

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एससीईआरटी महाराष्ट्र Science and Technology Part 2 [English] Standard 10 Maharashtra State Board
अध्याय 5 Towards Green Energy
Choose the correct option | Q 5. | पृष्ठ ५

संबंधित प्रश्न

Which of the following is not an example of a bio-mass energy source?


Which of the following is not a fossil fuel?

(a) coal
(b) petroleum gas
(c) biogas
(d) natural gas


The following question are about the nuclear reactor of a power plant. 

What is the purpose of using the graphite moderator?


In the reactor of a nuclear power plant, name the material which is used:

(a) as a moderator
(b) to absorb radiations
(c) in the fuel rods
(d) in the control rods
(e) to carry away heat


In the nuclear reactor of a power plant: 

how do control rods control the rate of fission?


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


One type of energy which has not been controlled so far is:

(a) ocean thermal energy
(b) nuclear fusion energy
(c) geothermal energy
(d) nuclear fission energy


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`""_92^235U+_0^1n-> _56^139Ba+_36^94Kr+xc+E`  

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Make the correct choices in the following:
(a) In one atom of copper (mass number 63, atomic number 29) there are


Which one of the following statements about alpha and beta particles is
correct?


Write the approximate mass of a proton, neutron and electron in a.m.u.


The isotope of 92U235 decays by alpha emission to an isotope of Thorium (Th). The Thorium isotope decays by beta emission to an isotope of Protactaminum (Pa). Write down the equations to represent these two nuclear changes. 


A nucleus `"_11Na^24` emits a beta particle to change into Magnesium (Mg).
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(ii) What are numbers 24 and 11 called?

(iii) What is the general name `"_12^24Mg` with respect to `"_11^24Na`?


What are beta rays and gamma rays?


A certain nucleus X has a mass number 14 and atomic number 6. The nucleus X changes to `"_7Y^14` after the loss of a particle. A radioactive substance is oxidized. What change would you expect to take place in the nature of its radioactivity? Give a reason for your answer.


Which substance is used as fuel in nuclear power plants?


Name the nuclear radiation which has the highest ionizing power.


Give scientific reason.

It is absolutely necessary to control the fission reaction in nuclear power plants.


Give scientific reasons.

It is absolutely necessary to control the fission reaction in nuclear power plants.


Give scientific reasons.

It is absolutely necessary to control the fission reaction in nuclear power plants.


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