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प्रश्न
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उत्तर
संबंधित प्रश्न
Why do Free electrons not leave the metal surface on their own
State the energy conversion taking place in a cathode ray tube
What is thermionic emission?
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.
A radioactive nucleus `""_"Z"^"A"` X first emits a beta particle and then an alpha particle to give the resulting nucleus `""_"Q"^"P"` Y What will be the values of P and Q in terms of A and Z?
State any two uses of cathode rays.
How is a cathode ray tube used to convert an electrical signal into a visual signal?
88Ra226 experiences three α - decay. Find the number of neutrons in the daughter element.
In U238 ore containing Uranium the ratio of U234 to Pb206 nuclei is 3. Assuming that all the lead present in the ore is final stable product of U238. Half life of U238 to be 4.5 × 109 years and the age of ore is ______ × 109 years. (in 109 years)
In the following atoms, which one is a radioisotope? Give one use of this isotope.
O16, C14, N14, He4
