Wave-particle Duality MCQs with Answers

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Wave-particle Duality Online Quiz

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• Test Name: Wave-particle Duality MCQ Quiz Practice
• Type: Quiz Test
• Total Questions: 40
• Total Marks: 40
• Time: 40 minutes

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Wave-particle Duality

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1 / 40

What did the photoelectric effect demonstrate?

Electrons are immobile

Light has particle properties

Light is purely a wave

2 / 40

In which phenomenon does light behave like a wave, showing interference patterns?

Photoelectric effect

Rutherford scattering

Double-slit experiment

3 / 40

What is the Heisenberg Uncertainty Principle related to wave-particle duality?

Limits precision in measuring position and momentum

Limits precision in measuring time

Ensures exact measurement

4 / 40

What is diffraction in terms of wave-particle duality?

The bending of waves around obstacles

The collision of particles

The emission of photons

5 / 40

In wave-particle duality, what role does the observer play in measurement?

Determines the wave or particle nature observed

Has no role in determining nature

Only measures particle properties

6 / 40

What is a major consequence of the wave-particle duality for the nature of light?

Light behaves only as particles

Light behaves only as waves

Light behaves as both waves and particles

7 / 40

In the context of wave-particle duality, what is interference?

A particle collision

A wave phenomenon where waves superimpose

A random fluctuation

8 / 40

What is the de Broglie wavelength formula?

λ = h/p

λ = h/m

λ = p/h

9 / 40

According to the de Broglie hypothesis, what is the relationship between a particle's velocity and its wavelength?

Unrelated

Inversely proportional

Directly proportional

10 / 40

In quantum mechanics, what does complementarity refer to?

Only particle aspects are relevant

Only wave aspects are relevant

Wave and particle aspects are complementary

11 / 40

Who proposed the concept of wave-particle duality?

Niels Bohr

Louis de Broglie

Albert Einstein

12 / 40

In which phenomenon do particles show wave-like behavior by producing a diffraction pattern?

Newton's rings

Electron diffraction

Rutherford scattering

13 / 40

What is the result of the wave-particle duality concept on classical mechanics?

It has no impact

It challenges classical concepts

It confirms all classical concepts

14 / 40

What is an implication of wave-particle duality for macroscopic objects?

Significant particle properties

Significant wave properties

Negligible effects

15 / 40

What did the double-slit experiment reveal about electrons?

They do not interfere

They follow definite paths

They exhibit interference patterns

16 / 40

What is the outcome when light is shone on a metal surface in the photoelectric effect?

Emission of photons

No effect

Emission of electrons

17 / 40

What does the term "wave packet" refer to in wave-particle duality?

A single, infinite wave

A collision of particles

A localized group of waves

18 / 40

In the formula λ = h/p, what does h represent?

Planck's constant

Speed of light

Gravitational constant

19 / 40

How did de Broglie describe matter waves?

As waves associated with moving particles

As waves with no mass

As waves associated with stationary particles

20 / 40

What is the significance of Davisson-Germer experiment?

Demonstrated electron diffraction

Demonstrated nuclear fission

Demonstrated photon entanglement

21 / 40

What is a common experimental proof of wave-particle duality for photons?

Compton scattering

Double-slit experiment

Stern-Gerlach experiment

22 / 40

In the context of wave-particle duality, what is p?

Position

Momentum

Probability

23 / 40

What does de Broglie's hypothesis state?

Particles are purely waves

Particles have wave-like properties

Particles are purely particles

24 / 40

Which property of electrons was confirmed by electron diffraction experiments?

Particle-like behavior

Wave-like behavior

High velocity

25 / 40

How did Young's double-slit experiment contribute to the understanding of wave-particle duality?

It showed particles have definite paths

It demonstrated interference patterns

It measured particle velocities

26 / 40

What was the major outcome of the Compton effect experiment?

Demonstrated wave nature of electrons

Demonstrated wave nature of light

Demonstrated particle nature of photons

27 / 40

What is wave-particle duality?

The concept that waves are only electromagnetic

The concept that particles exhibit both wave and particle properties

The idea that particles cannot be waves

28 / 40

Which experiment demonstrates the wave-particle duality of electrons?

Michelson-Morley experiment

Rutherford scattering

Double-slit experiment

29 / 40

How does wave-particle duality affect the behavior of subatomic particles?

Causes linear motion only

Causes them to become stationary

Causes interference and diffraction

30 / 40

What is the wavelength of a particle with high momentum according to de Broglie's equation?

Long

Short

Infinite

31 / 40

According to wave-particle duality, what is the nature of light?

Only wave

Both wave and particle

Only particle

32 / 40

Who explained the photoelectric effect using the concept of photons?

Max Planck

Erwin Schrödinger

Albert Einstein

33 / 40

What does the term "quantum" refer to in the context of wave-particle duality?

The mass of an electron

The smallest unit of energy

The speed of light

34 / 40

What is a practical application that relies on the wave nature of electrons?

MRI scanners

Electron microscopy

GPS technology

35 / 40

What is a photon?

A particle of mass

A quantum of light

A wave of light

36 / 40

How is wave-particle duality essential for understanding quantum mechanics?

It explains the dual nature of matter and energy

It refutes the existence of waves

It confirms classical mechanics

37 / 40

Which theory incorporates wave-particle duality as a fundamental concept?

Quantum mechanics

Classical mechanics

General relativity

38 / 40

How does wave-particle duality influence the design of quantum computers?

By ignoring quantum properties

By using superposition and entanglement

By using only classical bits

39 / 40

What does the wave function describe in quantum mechanics?

Definite momentum

Probability amplitude

Definite position

40 / 40

How does wave-particle duality relate to the uncertainty principle?

It ensures exact measurements

It implies limits in measurement precision

It is unrelated

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