Atomic StructureHeisenberg Uncertainty Principle (NEET (NTA)National Eligibility cum Entrance Test (Medical) Chemistry): Questions 1  6 of 9
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Question number: 1
» Atomic Structure » Heisenberg Uncertainty Principle
Question
what will be the uncertainty in velocity of a cricket ball if its uncertainty in position is of order of 1Å.
(If mass = 0.15kg)
Choices
Choice (4)  Response  

a.  2.22m/s 

b.  3.51m/s 

c.  2.22m/s 

d.  3.51m/s 

Question number: 2
» Atomic Structure » Heisenberg Uncertainty Principle
Question
If uncertainty in position and momentum are equal, the uncertainty in velocity is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  Question does not provide sufficient data or is vague 

Question number: 3
» Atomic Structure » Heisenberg Uncertainty Principle
Question
The uncertainty in position and velocity of a particle are m and 5.27 x ms^{1} respectively. Calculate the mass of the particle is (h = 6.625 x Js)
Choices
Choice (4)  Response  

a.  0.99 g 

b.  0.099 kg 

c.  0.92 kg 

d.  All of the above 

Question number: 4
» Atomic Structure » Heisenberg Uncertainty Principle
Question
Uncertainty in position of a minute particle of mass 25g in space is 1m. The uncertainty in its velocity (in m/s) is
Choices
Choice (4)  Response  

a.  2.1 

b.  2.1 

c.  2.1 

d.  2.1 

Question number: 5
» Atomic Structure » Heisenberg Uncertainty Principle
Question
Uncertainty is possible in a particle of 25g in space uncertainty in velocity is
Choices
Choice (4)  Response  

a.  1.1×10  28 

b. 


c. 


d. 


Question number: 6
» Atomic Structure » Heisenberg Uncertainty Principle
Question
Choose the correct option?
Choices
Choice (4)  Response  

a.  Shapes of orbitals are functional representation of mathematical solutions of Schrodinger equations. They do not represent any picture of electric charge or matter. 

b.  Smaller the wavelength of the electron wave more is the resolving power of the electron microscope. 

c.  Uncertainty in measurement is not due to lack of any experimental technique but due to nature of subatomic particle itself. 

d.  All a. , b. and c. are correct 
