Highly energetic electrons are bombarded on a target of an element containing 30 neutrons

PHYSICS · Multi-part · CBSE · Physics · Atoms · Atoms

Problem

Highly energetic electrons are bombarded on a target of an element containing 30 neutrons. The ratio of radii of nucleus to that of Helium nucleus is

(14)^{1/3}

. (a) atomic number of the nucleus. (b) the frequency of

K_\alpha

line of the X-ray produced. (

R = 1.1 \times 10^7 \text{ m}^{-1}

and

c = 3 \times 10^8 \text{ m/s}

)