# Atomic Structure-Heisenberg 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

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MCQ▾

### 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.

2.22 m/s

b.

2.22 m/s

c.

3.51 m/s

d.

3.51 m/s

## Question number: 2

» Atomic Structure » Heisenberg Uncertainty Principle

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MCQ▾

### Question

If uncertainty in position and momentum are equal, the uncertainty in velocity is –

### Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

## Question number: 3

» Atomic Structure » Heisenberg Uncertainty Principle

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MCQ▾

### 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.

0.92 kg

b.

0.99 g

c.

0.099 kg

d.

All of the above

## Question number: 4

» Atomic Structure » Heisenberg Uncertainty Principle

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MCQ▾

### Question

Uncertainty in position of a minute particle of mass 25g in space is 1 m. 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

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MCQ▾

### Question

Uncertainty is possible in a particle of 25g in space uncertainty in velocity is-

### Choices

Choice (4)Response

a.

b.

1.1×10 - 28

c.

d.

## Question number: 6

» Atomic Structure » Heisenberg Uncertainty Principle

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MCQ▾

### 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

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