Question
In nuclear reactor, heavy water is used as
–Solution
Heavy water is used in certain types of nuclear reactors where it acts as a neutron moderator to slow down neutrons so that they are more likely to react with the fissile uranium-235 than with uranium-238 which captures neutrons without fissioning. Because they do not require uranium enrichment, heavy water reactors are of concern in regards to nuclear proliferation.
If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states this?
A man inside an artificial satellite feels weightlessness because the force of attraction due to earth is –
Which of the following is not an abiotic component of our surrounding?
Which of the following element is found in maximum percentage in the human body?
The force which opposes the relative motion between different layers of liquid or gases is called –
Kindly Study the following questions carefully and choose the right answer.
Human saliva contains an enzyme called salivary amylase that breaks...
In Bernoulli's principle, increase in fluid velocity leads to:
Which part of the plant is responsible for photosynthesis?
A body is thrown vertically upwards and then falls back on the ground. Its potential energy is maximum:
What is the reason for twinkling of stars?
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