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प्रश्न
What are isobars?
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उत्तर
The atoms of different elements which have the same mass number 'A', but different atomic number 'Z' are called 'Isobars'.
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संबंधित प्रश्न
Answer the following questions based on a hot cathode ray tube
Name the charged particles
In following fig. shows a mixed source S of alpha and beta particles in a thick lead container. The particles pass through a magnetic field in a direction perpendicular to the plane of paper (inwards as shown by x). State and show in the diagram how the particles get affected.
Define bound electrons.
State two characteristics of the substance used as thermionic emitter.
Justify with reason, whether the following nuclear reactions are allowed or not.
\[\ce{^A_Z X -> ^A_{Z - 2}X + ^4_{2}He}\]
The half-life of a radioactive nuclide is 100 hours. The fraction of original activity that will remain after 150 hours would be ______.
Assertion (A): The force of repulsion between atomic nucleus and α-particle varies with distance according to inverse square law.
Reason (R): Rutherford did α-particles scattering experiment.
Assertion (A): The force of repulsion between atomic nucleus and α-particle varies with distance according to inverse square law.
Reason (R): Rutherford did α-particles scattering experiment.
Which of the following correctly describes the properties of an alpha particle?
Which decay process involves the emission of a particle with a comparatively large mass and a positive charge?
