The material used to slow down the neutrons in a nuclear ...
The material used to slow down the neutrons in a nuclear reactor is
boron
copper
graphite
uranium
Correct answer is C
No explanation has been provided for this answer.
A magnetic needle is suspended first at the earth's north magnetic pole and then at a point on t...
Which of the following statement about force is correct ? ...
A brass cube of side 10cm is heated through 30°C. If the linear expansivity of brass is 2.0 &tim...
Which of the following readings cannot be determined with a meter rule? ...
A magnetic field is said to exist at a point if a force is ...