Test: Quantum Mechanical Model of Atom - 1

Question 1

The de Broglie wavelength associated with a ball of mass 200 g and moving at a speed of 5 metres/hour, is of the order of (h = 6.625 x 10^-34 J s) is

Accepted Answer

10-30 m

Answer

10-15 m

Answer

10-20 m

Answer

10-25 m

Question 2

A body of mass 10 g is moving with a velocity of 100 m s^-1. The wavelength associated with it is

Accepted Answer

6.626 x 10^-34 m

Answer

6.626 x 10^-7 m

Answer

6.626 x 10^-4 m

Answer

6.626 x 10^-35 m

Question 3

The wavelength of an electron moving with velocity of 10⁷ m s^-1 is

Accepted Answer

7.27 x 10^-11 m

Answer

3.55 x 10^-11 m

Answer

8.25 x 10^-4 m

Answer

1.05 x 10^-16m

Question 4

What will be the wavelength of an electron moving with 1/10th of velocity of light?

Accepted Answer

2.43 x 10^-11 m

Answer

243 x 10^-11 m

Answer

0.243 m

Answer

2.43 x 10^-4 m

Question 5

If the velocity of an electron in Bohr’s first orbit is 2.19 x 10⁶ m s^-1, what will be the de Broglie wavelength associated with it?

Accepted Answer

3.32 x 10^-10 m

Answer

2.19 x 10^-6 m

Answer

4.38 x 10^-6 m

Answer

3.32 x 10¹⁰ m

Question 6

Match the column I with column II and mark the appropriate choice.

Accepted Answer

(A) → (ii), (B) → (i), (C) → (iv), (D) → (iii)

Answer

(A) → (iii), (B) → (iv), (C) → (i), (D) → (ii)

Answer

(A) → (iv), (B) → (iii), (C) → (i), (D) → (ii)

Answer

(A) → (i), (B) → (ii), (C) → (iv), (D) → (iii)

Question 7

If uncertainty principle is applied to an object of mass 1 milligram, the uncertainty value of velocity and position will be

Accepted Answer

0.52 x 10^-28 m² s^-1

Answer

0.2 x 10^-4 m² s^-1

Answer

0.52 x 10⁶ m² s^-1

Answer

2 x 10^-34 m² s^-1

Question 8

What will be the uncertainty in velocity of a bullet with a mass of 10 g whose position is known with ± 0.01 mm?

Accepted Answer

5.275 x 10^-28 m s^-1

Answer

5.275 x 10^-33 m s^-1

Answer

5.275 x 10^-25 m s^-1

Answer

5.275 x 10^-5 m s^-1

Question 9

What will be the mass of a particle if uncertainty in its position is 10^-8 m and velocity is 5.26 x 10^-25 m s^-1?

Accepted Answer

0.01 kg

Answer

0.1 kg

Answer

1kg

Answer

10 kg

Question 10

What will be the uncertainty in velocity of an electron when the uncertainty in its position is 1000 Å?

Accepted Answer

5.79 x 10² m s^-1

Answer

5.79 x 10⁸ m s^-1

Answer

5.79 x 10⁴ m s^-1

Answer

5.79 x 10^-10 m s^-1

Quantum Mechanical Model of Atom - 1 - Free MCQ Practice Test with solutions,

MCQ Practice Test & Solutions: Test: Quantum Mechanical Model of Atom - 1 (10 Questions)

The de Broglie wavelength associated with a ball of mass 200 g and moving at a speed of 5 metres/hour, is of the order of (h = 6.625 x 10^-34 J s) is

A body of mass 10 g is moving with a velocity of 100 m s^-1. The wavelength associated with it is

The wavelength of an electron moving with velocity of 10⁷ m s^-1 is

What will be the wavelength of an electron moving with 1/10th of velocity of light?

If the velocity of an electron in Bohr’s first orbit is 2.19 x 10⁶ m s^-1, what will be the de Broglie wavelength associated with it?

Match the column I with column II and mark the appropriate choice.

If uncertainty principle is applied to an object of mass 1 milligram, the uncertainty value of velocity and position will be

What will be the uncertainty in velocity of a bullet with a mass of 10 g whose position is known with ± 0.01 mm?

What will be the mass of a particle if uncertainty in its position is 10^-8 m and velocity is 5.26 x 10^-25 m s^-1?

What will be the uncertainty in velocity of an electron when the uncertainty in its position is 1000 Å?

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Quantum Mechanical Model of Atom - 1 - Free MCQ Practice Test with solutions,

MCQ Practice Test & Solutions: Test: Quantum Mechanical Model of Atom - 1 (10 Questions)

The de Broglie wavelength associated with a ball of mass 200 g and moving at a speed of 5 metres/hour, is of the order of (h = 6.625 x 10-34 J s) is

A body of mass 10 g is moving with a velocity of 100 m s-1. The wavelength associated with it is

The wavelength of an electron moving with velocity of 107 m s-1 is

What will be the wavelength of an electron moving with 1/10th of velocity of light?

If the velocity of an electron in Bohr’s first orbit is 2.19 x 106 m s-1, what will be the de Broglie wavelength associated with it?

Match the column I with column II and mark the appropriate choice.

If uncertainty principle is applied to an object of mass 1 milligram, the uncertainty value of velocity and position will be

What will be the uncertainty in velocity of a bullet with a mass of 10 g whose position is known with ± 0.01 mm?

What will be the mass of a particle if uncertainty in its position is 10-8 m and velocity is 5.26 x 10-25 m s-1?

What will be the uncertainty in velocity of an electron when the uncertainty in its position is 1000 Å?

NCERT Based Tests for NEET

NCERT Based Tests for NEET

Top Courses for NEET

About this NEET Practice Test

Explore more NEET Study Resources

The de Broglie wavelength associated with a ball of mass 200 g and moving at a speed of 5 metres/hour, is of the order of (h = 6.625 x 10^-34 J s) is

A body of mass 10 g is moving with a velocity of 100 m s^-1. The wavelength associated with it is

The wavelength of an electron moving with velocity of 10⁷ m s^-1 is

If the velocity of an electron in Bohr’s first orbit is 2.19 x 10⁶ m s^-1, what will be the de Broglie wavelength associated with it?

What will be the mass of a particle if uncertainty in its position is 10^-8 m and velocity is 5.26 x 10^-25 m s^-1?