Atomic Structure-Heisenberg Uncertainty Principle (KVPY Stream-SA (Class 11) Chemistry): Questions 1 - 2 of 2

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Question number: 1

» Atomic Structure » Heisenberg Uncertainty Principle

Assertion-Reason▾

Assertion (Ꭺ)

If an electron is located within the range of 0.1 Å then the uncertainty in velocity is approximately 6×106ms .

(h=6.62×1034kgm2sec1,me=9.1×1031kg)

Reason (Ꭱ)

Trajectory (path of motion) of above electron can defined,

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Ꭺ is false but Ꭱ is true

d.

Ꭺ is true but Ꭱ is false

Question number: 2

» Atomic Structure » Heisenberg Uncertainty Principle

MCQ▾

Question

Calculate the uncertainty in the position of an electron if the uncertainty in its velocity is 5.7×105m/s

Choices

Choice (4) Response

a.

1.012×1010m

b.

2.76×1018m

c.

5.77×1016m

d.

0.162×1018m

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