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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

The disposal of nuclear waste safely is a big challenge before scientists.

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प्रश्न

The disposal of nuclear waste safely is a big challenge before scientists.

पर्याय

  • True

  • False

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चूक किंवा बरोबर
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उत्तर

True

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 5: Towards Green Energy - Write true or false [पृष्ठ १३]

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संबंधित प्रश्‍न

 What is nuclear fusion? Explain with an example. Write the equation of the reaction involved. 


Name one installation where such a process is utilised. 


What are the advantages and disadvantages of using nuclear fuel for generating electricity? 


A nuclear reaction is represented by the following equation:

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

 What does E represent?


List any four characteristics of a good fuel.


Give scientific reasons.

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


The element X has an atomic mass number of 238 and an atomic number
of 92. It emits an alpha particle forming an element y. Y can be represented
by


What is the meaning of mass number?


The element  `""_11^24 "Na"`  changes to magnesium by the emission of a beta particle. Write down the symbolic equation for the beta emission.


Write down the Einstein's mass-energy equivalence relation, explaining the meaning of each symbol used in it.


Complete the following nuclear change:

\[\ce{^24_11 Na -> ...Mg.... + ^0_-1β}\] 


A nucleus `"_11Na^24` emits a beta particle to change into Magnesium (Mg).
(i) Write the symbolic equation for the process.

(ii) What are numbers 24 and 11 called?

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


What will an alpha particle change into when it absorb one electron.


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. Name the particle emitted.


An element X has the symbol 84X202. It emits an alpha-particle and then a beta-particle. The final nucleus is bYa. Find a and b.


An isotope of uranium is 92Y238, i.e., it has mass number 235 and atomic number 92.
Do all isotopes have the same number of neutrons?


In the power plant based on nuclear energy, __________ is used to rotate the generator.


Which substance is used as fuel in nuclear power plants?


When neutron is bombarded on atom of Uranium-235, it absorbs the neutron and converts into ______.


Express 1 a.m.u. in MeV.


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