Which of the following elements is not-radioactive?
1 Uranium
2 Thorium
3 Plutonium
4 zirconium
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Study Of Life in outer space is known As
What is condensation? 1 Change of gas into solid 2 Change of solid into liquid 3 Change of vapour into liquid 4 Change of heat energy into cooling energy
Where Meson particles are found in ?
A moderator is used in nuclear reactors in order to 1 Increase the number of neutrons 2 Decrease the number of neutrons 3 Slow down the speed of neutrons 4 Accelerate the neutrons
Which of the following metals is a better conductor of electricity? A. Silver B. Copper
precautions to be observed while using electrical equipment
What are vitamins ? describe different kinds of vitamins
example for navigation satellite?
The location and energy of an electron in an atom can be specified by 1 Atomic mass 2 Atomic number 3 Quantum numbers 4 None of these
I am a student of class 12. PCMB group. I am not getting admission in any of the medical colleges. And I am not good at math. So what are the options available for me????
The country helped in arihant’s built?
A substance which changes readily into vapor without heating is called 1 Efflorescent 2 Synthetic 3 Volatile 4 Effervescent