wave particle duality Flashcards
What is wave-particle duality?
Wave-particle duality is the concept in quantum mechanics that every particle or quantum entity exhibits both wave and particle properties.
True or False: Light behaves only as a wave.
False
Fill in the blank: The phenomenon where light exhibits properties of both waves and particles is known as __________.
wave-particle duality
Which experiment demonstrated the wave-like behavior of light?
The double-slit experiment
Multiple Choice: Which of the following particles is known to exhibit wave-particle duality? A) Electron B) Proton C) Photon D) All of the above
D) All of the above
What is the phenomenon of reflection?
Reflection is the bouncing back of light or sound waves when they encounter a surface.
True or False: Diffraction occurs when waves encounter an obstacle or a slit that is comparable in size to their wavelength.
True
Fill in the blank: The bending of waves around obstacles and openings is known as __________.
diffraction
What is interference in the context of wave phenomena?
Interference is the phenomenon that occurs when two or more waves overlap and combine to form a new wave pattern.
Multiple Choice: Which of the following is a type of interference? A) Constructive B) Destructive C) Both A and B
Both A and B
What is the phenomenon called when electrons exhibit wave-like behavior?
Wave-particle duality
True or False: Electrons can interfere with each other similar to waves of light.
True
Fill in the blank: The interference pattern created by electrons is typically observed in a __________ experiment.
double-slit
What determines the type of interference (constructive or destructive) that occurs when electrons pass through slits?
The phase difference between the electron waves
Multiple Choice: In an electron interference experiment, what is the result of constructive interference?
Bright fringes on the detection screen
What is the formula for calculating the de Broglie wavelength?
The de Broglie wavelength is calculated using the formula λ = h/p, where λ is the wavelength, h is Planck’s constant, and p is the momentum of the particle.
True or False: The de Broglie wavelength applies only to particles with mass.
False. The de Broglie wavelength concept applies to all particles, including massless particles like photons.
Fill in the blank: The de Broglie wavelength is inversely proportional to the ______ of the particle.
momentum
What does the de Broglie hypothesis suggest about the nature of matter?
The de Broglie hypothesis suggests that matter exhibits wave-like properties, similar to light.
Multiple choice: Which of the following is a key implication of the de Broglie wavelength?
A) Particles can be treated as waves.
B) Energy is quantized.
C) Light has mass.
D) None of the above.
A) Particles can be treated as waves.
