English
Maharashtra State BoardSSC (English Medium) 10th Standard

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

Advertisements
Advertisements

Questions

Give scientific reasons.

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

Give scientific reasons.

It is essential to control the process of nuclear fission in a nuclear power plant.

Give Reasons
Advertisements

Solution

  1. Nuclear fission is a chain reaction.
  2. In a nuclear power plant, this chain reaction must be carefully controlled.
  3. If the reaction is not controlled, a large number of neutrons will be produced rapidly.
  4. These neutrons can cause the fission of more uranium 235 nuclei, leading to an uncontrolled increase in the reaction rate.
  5. Such uncontrolled chain reactions can release an enormous amount of energy in a very short time and may result in serious accidents.
shaalaa.com
  Is there an error in this question or solution?
Chapter 5: Towards Green Energy - Give scientific reasons [Page 20]

APPEARS IN

SCERT Maharashtra Science and Technology Part 2 [English] Standard 10 Maharashtra State Board
Chapter 5 Towards Green Energy
Give scientific reasons | Q 2. | Page 20
Balbharati Science and Technology 2 [English] Standard 10 Maharashtra State Board
Chapter 5 Towards Green Energy
Exercises | Q 11. b. | Page 60

RELATED QUESTIONS

Compare and contrast bio-mass and hydro electricity as sources of energy.


The calorific value and ignition temperature of fuel A are 55 kJ/g and 80°C, respectively. These values for fuel B are 80 kJ/g and 10°C, respectively. On burning, the fuel A produces CO2 and H2O while the fuel B produces CO2 , CO and SO2. Give three points of relative and disadvantages of these two fuels.


Which of the following is not a fossil fuel?

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


The energy produced by converting 1 gram mass of a nuclear fuel into energy completely is:

(a) 9 × 1016 J
(b) 9 × 1014 J
(c) 9 × 1015 J
(d) 9 × 1013 J

 

One MeV of nuclear energy is equivalent to:

(a) 1.6 × 10−13 J
(b) 1.6 × 10−19 J
(c) 1.6 × 10−16 J
(d) 1.6 × 10−15 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


A nuclear reaction is represented by the following equation:

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

 What does E represent?


Explain why, in a nuclear reactor, the chain reaction stops if the control rods are fully inserted into the graphite.


State the kind of nuclear reaction taking place in a nucleus during the emission of a β-particle.


State, giving reason, whether the following nuclear decay is allowed or not?

\[\ce{_Z^AX -> _Z^AQ + γ}\] 


What is the effect on the atomic mass and the atomic number of a radioactive element, after the emission of an α-particle?


A nucleus of an element has the symbol 84P202, and emits an α-particle and then a β-particle. The final nucleus is bQa Find a and b.


What are beta rays and gamma rays?


What safety measures and needed in a nuclear power plant?


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?


An isotope of uranium is 92Y238, i.e., it has mass number 235 and atomic number 92.
Mention the relationship between 92U235 and 92U238.


In nuclear power plants, neutrons are bombarded on atoms of __________.


Which substance is used as fuel in nuclear power plants?


Analogy:

Kayatharu in Tirunelveli district:: Windmills.
Koodankulam in Tirunelveli district:: ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×