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Questions
Write the problems associated with hydroelectric power projects.
Write two problems associated with hydroelectric power plant.
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Solution
- The back-water due to storage of water in a dam may submerge villages or towns in that area. This leads to the problems of rehabilitation of the displaced population. Moreover, this can also submerge forests as well as fertile land.
- The obstruction of the flow of river water may have an adverse effect on the living world in the river.
RELATED QUESTIONS
The following question are about the nuclear reactor of a power plant.
Which isotope of uranium produces the energy in the fuel rods?
How does inserting the control rods in the graphite core affect the fission in the reactor? Explain your answer.
Name five places in India where nuclear power plants are located.
An uncontrolled nuclear chain reaction forms the basis of:
(a) nuclear power plant
(b) hydrogen bomb
(c) thermal power station
(d) atom bomb
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 equation:
`""_1^2H+_1^2H->_2^3He+xc+E`
What type of nuclear bomb is based on similar reactions?
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:
a hydrogen bomb?
Make the correct choices in the following:
(a) In one atom of copper (mass number 63, atomic number 29) there are
A radioactive nucleus undergoes a series of decays according to the sequence
\[\ce{X->[β] X1->[α] X2->[α]X3}\]
If the mass number and atomic number of X3 are 172 and 69 respectively, what is the mass number and atomic number of X?
Complete the following nuclear change:
\[\ce{^24_11 Na -> ...Mg.... + ^0_-1β}\]
When an alpha particle gains two electrons it becomes neutral and becomes an atom of an element which is a rare gas. What is the name of this rare gas?
State charge and mass of β-particle.
The nucleus B emit a β-particle and is transformed into nucleus C. What is the composition of C?
What are beta rays and gamma rays?
Explain, why nuclear fusion is not being used to meet day to day energy needs.
One of the atomic power stations is located in ______.
Give scientific reason.
It is absolutely necessary to control the fission reaction in nuclear power plants.
Give scientific reason.
It is absolutely necessary to control the fission reaction in nuclear power plants.
Copy and complete the nuclear reaction by filling in the blanks.
\[\ce{_92U^235 + _0n^1 -> _56Ba^{\underline{\phantom{....}}} + \underline{\phantom{..}}Kr^92 + 3 _0n^1}\]
Give scientific reasons.
It is absolutely necessary to control the fission reaction in nuclear power plants.
