When an electron is moving with velocity of 2.188 x 106 ms-1 in the fi – McqOptions

MCQOPTIONS

1.	When an electron is moving with velocity of 2.188 x 106 ms-1 in the first orbit of Bohrs model of hydrogen. The de Broglie wavelength of electron is
A.	0.33 nm
B.	0.34 nm
C.	0.35 nm
D.	0.36 nm
Answer» B. 0.34 nm

Discussion

No Comment Found

Related MCQs

All the following variables are used to describle gases except
In the van der Waals equation (P + n2a / v2) (v nb) = nRT which of the following statement is not true?
Methyl alcohol is not used as
Oxygen (molecular weight = 32) diffuses at a rate of 10cm3/min under the same conditions of temperature and pressure how fast will hydrogen (molecular weight = 2) diffuse?
The inhaled breath of diabetics patient contain acetone. A medical student wishes to test for diabetes by asking patient to bubble their breath through a reagent.
When aquious bromine is added to aqueous phenol a creamy white ppt is obtained. What does this reaction show?
All the transition elements show
Paramagnetic behaviour of substance is measured by a balance called
In solids the temperature is the measure of
Which of the following properties prove that cathode rays are material in nature