Test: Dual Nature of Matter & Heisenberg's Uncertainty Principle

Question 1

Direction (Q. Nos. 1-10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.

Which of the following properties of atom could be explained correctly by Thomson Model of atom?

Accepted Answer

Overall neutrality of atom.

Answer

Spectra of hydrogen atom.

Answer

Position of electrons, protons and neutrons in atom.

Answer

Stability of atom.

Question 2

The threshold frequency v₀ for a metal is 7.0 x 10¹⁴ s^-1. Radiation of frequency v = 1.0 x 10¹⁵ s^-1 hits the metal. Kinetic energy of the emitted electron is

Accepted Answer

2.0 x 10^-19 J

Answer

2.0 x 10^-18 J

Answer

1.60 x 10^-17 J

Answer

1.60 x 10^-19 J

Question 3

Which of the following rules/principles is responsible to rule out the existence of definite paths or trajectories of electrons?

Accepted Answer

Heisenberg’s uncertainty principle

Answer

Aufbau (ascending energy) rule

Answer

Hund’s rule of maximum multiples

Answer

Pauli’s exclusion principle

Question 4

In an atom, an electron is moving with a speed of 600 ms^-1 with an accuracy of 0.005%. Certainty with which the position of the electron can be located is

[AIEEE 2009]

Accepted Answer

1.92 x 10^-3 m

Answer

1.52x 10^-4 m

Answer

5.10 x 10^-3 m

Answer

3.84 x 10^-3 m

Question 5

The wavelength (in nanometer) associated with a proton (mass = 1.67 x 10^-27 kg atom^-1) at the velocity of 1.0 x 10³ ms^-1 is

Accepted Answer

0.4 nm

Answer

0.032 nm

Answer

2.500 nm

Answer

4.000 nm

Question 6

Statement I : It is impossible to determine position and momentum of the moving electron simultaneously with same accuracy.
Statement II : The path of an electron in an atom is clearly defined.

Accepted Answer

Statement I is correct but Statement II is incorrect

Answer

Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement I

Answer

Both Statement I and Statement II are correct and Statement II is not the correct explanation of Statement I

Answer

Statement II is correct but Statement I is incorrect

Question 7

If the photon of the wavelength 150 pm strikes an atom and one of its inner bound electrons is ejected out with a velocity of 1.5 x 10⁷ ms^-1, then binding energy by which electron is bound to nucleus is

Accepted Answer

-1.223x 10^-15 J

Answer

1.223 x10^-15 J

Answer

2.345 x10^-15 J

Answer

1.428 x10^-15J

Question 8

The position of both, an electron and a helium atom is known within 1.0 mm. Further more the momentum of the electron is known within 5.0 x 10^-26 kg ms^-1. The minimum uncertainty in the measurement of the momentum of the helium atom is

Accepted Answer

5.0 x 10^-26 kg ms^-1

Answer

50.0 kg ms^-1

Answer

80.0 kg ms^-1

Answer

80.0 x 10^-26 kg ms^-1

Question 9

The wavelength of a neutron with a translatory kinetic energy equal to kT at 300 K is

Accepted Answer

178 pm

Answer

200 pm

Answer

17.8 pm

Answer

20.0 pm

Question 10

Frequency of a matter wave is equal to

Accepted Answer

Answer

Answer

Answer

Question 11

Direction (Q. Nos. 11 and 12) This section contains a paragraph, wach describing theory, experiments, data etc. three Questions related to paragraph have been given.Each question have only one correct answer among the four given ptions (a),(b),(c),(d)

Photoelectric effect can be expressed in terms of the following graph

Q. What is work function for this photoelectric emission of electrons?

Photoelectric effect can be expressed in terms of the following graph

Q. What is work function for this photoelectric emission of electrons?

Accepted Answer

199.262 kJ mol^-1

Answer

199.262 J mol^-1

Answer

3.3 kJ mol^-1

Answer

3.3 x 10^-19 kJ mol^-1

Question 12

Photoelectric effect can be expressed in terms of the following graph

Q. Kinetic energy imparted to the moving electron at a wavelength of 2.5 x 10^-7 m is

Accepted Answer

278.97 kJmol^-1

Answer

-278.97 kJ mol^-1

Answer

168.23 kJmol^-1

Answer

-168.23 kJ mol^-1

Question 13

Direction (Q. Nos. 13) Choice the correct combination of elements and column I and coloumn II are given as option (a), (b), (c) and (d), out of which ONE option is correct.

Q.

Neon gas is generally used in sign boards. It emits radiations at wavelength 616 nm.
Match the values derived given in Column II with the corresponding parameter given in Column I.

Accepted Answer

b

Answer

a

Answer

c

Answer

d

Question 14

Direction (Q. Nos. 14 - 16) This section contains 2 questions. when worked out will result in an integer from 0 to 9 (both inclusive)

Q.

The work function () of some metals is listed below. The number of metals which will show photoelectric effect when light of 300 nm wavelength falls on the metal i s ........

Accepted Answer

Question 15

If the uncertainties in the measurements of position and momentum are equal, calculate the uncertainty in the measurement of velocity (in ms^-1) of particle of mass 1.21 x 10^-18 kg

Accepted Answer

Question 16

Wavelength associated with an electron having KE 3.0 x 10^-25 J is x *10^-7 m.

Q. What is the value of x? (Round of to nearest integer)

Accepted Answer

Dual Nature of Matter & Heisenberg's Uncertainty Principle - Free MCQ Practice

MCQ Practice Test & Solutions: Test: Dual Nature of Matter & Heisenberg's Uncertainty Principle (16 Questions)

Direction (Q. Nos. 1-10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.
Which of the following properties of atom could be explained correctly by Thomson Model of atom?

The threshold frequency v₀ for a metal is 7.0 x 10¹⁴ s^-1. Radiation of frequency v = 1.0 x 10¹⁵ s^-1 hits the metal. Kinetic energy of the emitted electron is

Which of the following rules/principles is responsible to rule out the existence of definite paths or trajectories of electrons?

In an atom, an electron is moving with a speed of 600 ms^-1 with an accuracy of 0.005%. Certainty with which the position of the electron can be located is
[AIEEE 2009]

The wavelength (in nanometer) associated with a proton (mass = 1.67 x 10^-27 kg atom^-1) at the velocity of 1.0 x 10³ ms^-1 is

Statement I : It is impossible to determine position and momentum of the moving electron simultaneously with same accuracy.
Statement II : The path of an electron in an atom is clearly defined.

If the photon of the wavelength 150 pm strikes an atom and one of its inner bound electrons is ejected out with a velocity of 1.5 x 10⁷ ms^-1, then binding energy by which electron is bound to nucleus is

The position of both, an electron and a helium atom is known within 1.0 mm. Further more the momentum of the electron is known within 5.0 x 10^-26 kg ms^-1. The minimum uncertainty in the measurement of the momentum of the helium atom is

The wavelength of a neutron with a translatory kinetic energy equal to kT at 300 K is

Frequency of a matter wave is equal to

Photoelectric effect can be expressed in terms of the following graph

Q. Kinetic energy imparted to the moving electron at a wavelength of 2.5 x 10^-7 m is

If the uncertainties in the measurements of position and momentum are equal, calculate the uncertainty in the measurement of velocity (in ms^-1) of particle of mass 1.21 x 10^-18 kg

Wavelength associated with an electron having KE 3.0 x 10^-25 J is x *10^-7 m.
Q. What is the value of x? (Round of to nearest integer)

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Dual Nature of Matter & Heisenberg's Uncertainty Principle - Free MCQ Practice

MCQ Practice Test & Solutions: Test: Dual Nature of Matter & Heisenberg's Uncertainty Principle (16 Questions)

Direction (Q. Nos. 1-10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Which of the following properties of atom could be explained correctly by Thomson Model of atom?

The threshold frequency v0 for a metal is 7.0 x 1014 s-1. Radiation of frequency v = 1.0 x 1015 s-1 hits the metal. Kinetic energy of the emitted electron is

Which of the following rules/principles is responsible to rule out the existence of definite paths or trajectories of electrons?

In an atom, an electron is moving with a speed of 600 ms-1 with an accuracy of 0.005%. Certainty with which the position of the electron can be located is[AIEEE 2009]

The wavelength (in nanometer) associated with a proton (mass = 1.67 x 10-27 kg atom-1) at the velocity of 1.0 x 103 ms-1 is

Statement I : It is impossible to determine position and momentum of the moving electron simultaneously with same accuracy. Statement II : The path of an electron in an atom is clearly defined.

If the photon of the wavelength 150 pm strikes an atom and one of its inner bound electrons is ejected out with a velocity of 1.5 x 107 ms-1, then binding energy by which electron is bound to nucleus is

The position of both, an electron and a helium atom is known within 1.0 mm. Further more the momentum of the electron is known within 5.0 x 10-26 kg ms-1. The minimum uncertainty in the measurement of the momentum of the helium atom is

The wavelength of a neutron with a translatory kinetic energy equal to kT at 300 K is

Frequency of a matter wave is equal to

Photoelectric effect can be expressed in terms of the following graph Q. Kinetic energy imparted to the moving electron at a wavelength of 2.5 x 10-7 m is

If the uncertainties in the measurements of position and momentum are equal, calculate the uncertainty in the measurement of velocity (in ms-1) of particle of mass 1.21 x 10-18 kg

Wavelength associated with an electron having KE 3.0 x 10-25 J is x *10-7 m.Q. What is the value of x? (Round of to nearest integer)

Topic-wise MCQ Tests for NEET

Topic-wise MCQ Tests for NEET

Top Courses for NEET

About this NEET Practice Test

Explore more NEET Study Resources

Direction (Q. Nos. 1-10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.
Which of the following properties of atom could be explained correctly by Thomson Model of atom?

The threshold frequency v₀ for a metal is 7.0 x 10¹⁴ s^-1. Radiation of frequency v = 1.0 x 10¹⁵ s^-1 hits the metal. Kinetic energy of the emitted electron is

In an atom, an electron is moving with a speed of 600 ms^-1 with an accuracy of 0.005%. Certainty with which the position of the electron can be located is
[AIEEE 2009]

The wavelength (in nanometer) associated with a proton (mass = 1.67 x 10^-27 kg atom^-1) at the velocity of 1.0 x 10³ ms^-1 is

Statement I : It is impossible to determine position and momentum of the moving electron simultaneously with same accuracy.
Statement II : The path of an electron in an atom is clearly defined.

If the photon of the wavelength 150 pm strikes an atom and one of its inner bound electrons is ejected out with a velocity of 1.5 x 10⁷ ms^-1, then binding energy by which electron is bound to nucleus is

The position of both, an electron and a helium atom is known within 1.0 mm. Further more the momentum of the electron is known within 5.0 x 10^-26 kg ms^-1. The minimum uncertainty in the measurement of the momentum of the helium atom is

Photoelectric effect can be expressed in terms of the following graph

Q. Kinetic energy imparted to the moving electron at a wavelength of 2.5 x 10^-7 m is

If the uncertainties in the measurements of position and momentum are equal, calculate the uncertainty in the measurement of velocity (in ms^-1) of particle of mass 1.21 x 10^-18 kg

Wavelength associated with an electron having KE 3.0 x 10^-25 J is x *10^-7 m.
Q. What is the value of x? (Round of to nearest integer)