JEE PHYSICS MCQ: ATOMS

1 Medium

1 of 1

Understanding +4 | -1

A metal block is exposed to beams of

X

-ray of different wavelengths

X

-rays of which wavelength penetrate most

View answer and explanation

Correct option: A

2\;\mathop A\limits^ \circ

Option A (

2\;\mathop A\limits^ \circ

) is correct because X-rays with shorter wavelengths have greater penetrating power.

More Questions from ATOMS

Practice All Chapter MCQs →

The de-Broglie wavelength of an electron in the first Bohr orbit is The volume occupied by an atom is greater than the volume of the nucleus by a factor of about For a hydrogen atom, when electron jump from

n

=2

{n}=1

, then wave length of radiation emitted found to be

\lambda_0

. Then, for which transition of electron of a 'He' atom, the wavelength of radiation emitted will be equal to '

\lambda_0

'. Energy of characteristic X-ray is a consequence of Taking Rydberg’s constant

{R_H} = 1.097\,\, \times \,\,{10^7}\,\,m

, first and second wavelength of Balmer series in hydrogen spectrum is When hydrogen atom is in its first excited level, its radius is its ground state radius