The correct order of penetrating power of α-, β- and γ- rays is γ >...
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Chapter: Atomic Nucleus
Mention one peaceful use of atomic energy
Mention one peaceful use of atomic energy. OR Fill up the blank : γ-ray is...
Write one use of each of the x-ray and ϒ-ray.
Write one use of each of the x-ray and ϒ-ray. Mention one harmful effect of...
There are 92 protons and 143 neutrons in the nucleus
There are 92 protons and 143 neutrons in the nucleus of a radioactive atom. If...
By the emission of which radioactive ray from the atom
By the emission of which radioactive ray from the atom of a radioactive element, no...
The number of a and β particles emitted in the
The number of a and β particles emitted in the reaction 86A222 → 84B210 wouldrespectively...
Mention one practical application of controlled chain reaction
Mention one practical application of controlled chain reaction. OR Why is a nuclear fission conducted...
Compare the charge, penetrating power and ionising power of α
Compare the charge, penetrating power and ionising power of α and γ rays.
Which of the following rays has the highest capacity to
Which of the following rays has the highest capacity to ionise gases? (a) α-ray (b)...