NAVNEET PUBLICATION - MAHARASHTRA BOARD|Exercise ATOMS, MOLECULES AND NUCLEI|1 Videos
Similar Questions
Explore conceptually related problems
beta -particles and gamma -rays.
A radioactive element ._(Z)X^(4) whose atomic mass is A and atomic number is Z emits an alpha -particle and gamma -rays. What is the atomic number and atomic mass of the newly formed (daughter) atom?
Correct increasing order of penetrating powers of alpha,beta particles and gamma -rays, all moving with same kinetic energy is
In an observation , alpha - particles , beta -particles and gamma - rays have same energies . Their penetrating power in a given medium in increasing order will be
Consider alpha-, beta - particles and gamma- rays, each having an energy fo 0.5Mev in increasing order f penertation power, the radiations are:
._(235)^(239)Pu._(94) is undergoing alpha-decay according to the equation ._(94)^(235)Pu rarr (._(97)^(235)U) +._2^4 He . The energy released in the process is mostly kinetic energy of the alpha -particle. However, a part of the energy is released as gamma rays. What is the speed of the emiited alpha -particle if the gamma rays radiated out have energy of 0.90 MeV ? Given: Mass of ._(94)^(239)Pu =239.05122 u , mass of (._(97)^(235)U)=235.04299 u and mass of ._1^4He =4.002602 u (1u =931 MeV) .
A radioactive nucleus with Z protons and N neutrons emits an alpha- particle, 2 beta- particle and 2 gamma rays. The number of protons and neutrons in the nucleus left after the decay respectively, are
Assertion (A): beta- particles have greater penetrating power than alpha- rays but less than gamma- rays. Reason (R) : beta- particles are lighter than alpha- particles but heavier than gamma.
