The dielectric constant of helium is 1.000684. If N is 2.7 X 1025 atom – McqOptions

MCQOPTIONS

1.	The dielectric constant of helium is 1.000684. If N is 2.7 X 10²⁵ atoms/m³, what is the radius of the electronic cloud?
A.	3.78 X 10<sup>-11</sup> m
B.	4.65 X 10<sup>-11</sup> m
C.	5.87 X 10<sup>-11</sup> m
D.	6.12 X 10<sup>-11</sup> m
Answer» D. 6.12 X 10<sup>-11</sup> m

Discussion

No Comment Found

Related MCQs

The relative dielectric constant of polystyrene is 2.5. What is the polarization produced when 0.5 mm thick sheet of polystyrene is subjected to 220 V?
In a water drop of radius 1 mm all the molecular dipole points are in the same direction. If the dipole moment of a water molecule is 6 X 10<sup>-30</sup> m, the polarization in the water drop is _____________
The dielectric constant of helium is 1.000684. If N is 2.7 X 10<sup>25</sup> atoms/m<sup>3</sup>, what is the radius of the electronic cloud?
An oxygen atom produced a dipole moment of 5 X 10<sup>-23</sup> cm when subjected to an electric field. If the separation between the center of electronic cloud and the nucleus is 4 X 10<sup>-17</sup> m, what is the polarizability of the oxygen atom?
What is the polarizability of an argon atom if the relative permittivity of argon at NTP is 1.000435?
The frequency for electronic polarization lies in which region of the electromagnetic spectrum?
Which category of polarizability strongly depends on Temperature and frequency?
Space charge polarization is mostly observed in ____________
The dipole is least stable when the angle between the dipole and the field is _____________
In which category of polarization Electric field is used to develop a net dipole moment in dipolar substances?