Physics

The S.I. unit of radioactivity is

The S.I. unit of radioactivity is Options (a) Roentgen (b) Rutherford (c) Curie (d) Becquerel Correct Answer: BecquerelExplanation:No explanation available.…

The nuclear fusion reaction between deutrium and tritium takes place

The nuclear fusion reaction between deutrium and tritium takes place Options (a) at low temperature and low pressure (b) at…

In a given reaction, ᴢXᴬ → ᴢ+1Yᴬ → ᴢ-1Kᴬ⁻⁴ → ᴢ-1Kᴬ⁻⁴

In a given reaction, ᴢXᴬ → ᴢ+1Yᴬ → ᴢ-1Kᴬ⁻⁴ → ᴢ-1Kᴬ⁻⁴ The radioactive radiations are emitted in the sequence of…

For the radioactive nuclei that undergo either α or β decay, which one

For the radioactive nuclei that undergo either α or β decay, which one of the following cannot occur? Options (a)…

The relationship between decay constant λ and half-life T of a radioactive substance is

The relationship between decay constant λ and half-life T of a radioactive substance is Options (a) λ=log₁₀2/T (b) λ=logₑ2/T (c)…

The half life of radium is 1620 yr and its atomic weight is 226 kg per kilo mol.

The half life of radium is 1620 yr and its atomic weight is 226 kg per kilo mol. The number…

The energy released by the fission of one uranium atom is 200 MeV.

The energy released by the fission of one uranium atom is 200 MeV. The number of fission per second required…

Nuclear fission is not found in

Nuclear fission is not found in Options (a) thermonuclear reactor (b) hydrogen bomb (c) energy production in sun (d) atom…

In a nuclear reactor, the number of U²³⁵ nuclei undergoing fissions per second

In a nuclear reactor, the number of U²³⁵ nuclei undergoing fissions per second is 4x10²⁰. If the energy released per…

The kinetic energy of α-particle emitted in the α-dacay of ₈₈Ra²²⁶ is

The kinetic energy of α-particle emitted in the α-dacay of ₈₈Ra²²⁶ is [given, mass number of Ra=222 u] Options (a)…