A position is emitted from 23/11 Na. The ratio of the atomic mass and atomic number of the resulting nuclide is
The number of beta particles emitted in the radioactive decay from 238/92 U and 206/82 Pb is
When any radioactive element emits B-particle some product is obtained. They both are
What is x in the following nuclear reaction
If the mass defect of 5B^11 is 0.081 u, its average binding energy (in MeV) is
Positron has nearly the same weight as that of
Aradioactive substance 88 X ^228 (IIA) emits 3 a and 3 B particles to form Y . To which group of long form of the periodic table d..
The positron is
The half-life of ^14C is 5570 yr. How many years will it take for 90 per of a sample to decompose?
Hydrogen and deuterium differ in
Which of the following is n, p reaction
Which of the following nuclear transformation is (n, p) type
In successive emission of a and B-particles, the number of Î± and Î²-particles should be emitted for the conversion of 92 U ^2..
If an isotope of hydrogen has two neutrons in its atom
In the nuclear reaction 12mg24 + 2He2 = 0n1 + ? the product nuclues is
In the reaction 1H2 + 1H3 -> 2He4 + 0n1, if the
Highest ionising power is exhibited by
What is the fuel of atomic pile ?
The cause of instability of nucleus is
What is the correct order of velocity of alpha (a ), beta (B) and gamma (Y) rays ?
Electrical field is used to deflect
Which one of the following statements is not correct?
Penetrating power of waves are
If half-life period is 100 yr, average life is nearly
Decrease in atomic number is not observed during
Uranium with a mass number 237 and atomic number 92, changes to a nucleus with atomic number 90 and mass number 233 on emission of
In terms of energy 1 u is equal to
Which of the following has the maximum penetrating power ?
Loss of a beta particle is equivalent to
Gamma rays have
Which of the following has magic number of neutrons?
The energy released in an atom bomb explosion is mainly due to
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