MEDIUM
NEET
IMPORTANT
Earn 100

What possibly can be the ratio of the de Broglie wavelengths for two electrons each having zero initial energy and accelerated through 50 volts and 200 volts ?

50% studentsanswered this correctly

Important Questions on Structure of Atom

MEDIUM
NEET
IMPORTANT
Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 1>Q 104
A helium molecule is moving with a velocity of 2.40×102 ms-1 at 300 K. The De-Broglie wavelength is about
MEDIUM
NEET
IMPORTANT
Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 1>Q 105
If the wavelength is equal to the distance travelled by the electron in one second, then
EASY
NEET
IMPORTANT
Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 1>Q 106
The de-Broglie wavelength of an electron in the second orbit of Li2+ ion will be equal to the de-Broglie wavelength of an electron in:
MEDIUM
NEET
IMPORTANT
Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 1>Q 107
What is the De-Broglie wavelength associated with the electron in 3rd  orbit of hydrogen?
MEDIUM
NEET
IMPORTANT
Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 1>Q 108
Select the incorrect relationship among the following;
EASY
NEET
IMPORTANT
Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 1>Q 109
If the uncertainty in position of a moving particle is 0 then, uncertainty in momentum will be;
MEDIUM
NEET
IMPORTANT
Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 1>Q 110
The uncertainty in the momentum of an electron is 1.0×10-10 kg ms-1. The uncertainty in its position will be; h=6.62×10-34Js
MEDIUM
NEET
IMPORTANT
Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 1>Q 111
What is the minimum uncertainty in position of a proton whose velocity is 1.5×106±1500 m/s? mass of proton=1.6726×10-27kg