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Two shafts ‘A’ and ‘B’ under pure torsion are of identical length and identical weight and are made of the same material. The shaft ‘A’ is solid and the shaft ‘B’ is hollow. We can say that
In how many different ways can 3 identical green shirts and 3 identical red shirts be distributed among 6 children such that each child receives a shirt?
As an atom absorbs energy, ........ increases and the atom is said to be excited.
As an atom absorbs energy , ................. increases, and the atom is said to be excited .
As an atom absorbs energy,_____ increases, and the atom is said to be excitef
The oxygen atom is ________ times heavier than the hydrogen atom.
If the size of the nucleus of an atom is compared with a cricket ball, then the radius of the atom is approximately equal to how many kilometres?
Which of the followings is not a right isotope of Hydrogen?
Which of the following is not an isotope of hydrogen?
Which one is the radioactive isotope of hydrogen?