Veda Bites are swipeable micro-lessons — each one teaches exactly one
idea. Here's a taste from this kit; the app has the full deck.
💡 Key Idea
The Core Discovery
Matter waves confirmed experimentally.
The Davisson-Germer experiment (1927) provided the first experimental confirmation of de Broglie's hypothesis that matter exhibits wave-like behavior. By scattering electrons off a nickel crystal, they observed a diffraction pattern, which is a wave phenomenon. This proved that el...
↳ Electrons diffract like waves, proving matter has wave nature.
🕰️ Timeline
Historical Context
From hypothesis to experiment.
↳ The experiment was a pivotal step in quantum mechanics.
⚙️ Process
Experimental Setup
How the experiment was done.
↳ Electrons scattered off a crystal produce an interference pattern.
📖 Smart notes
What you'll study, topic by topic
1
Davisson-Germer Experiment: Wave Nature of Matter
The Davisson-Germer experiment confirmed the wave nature of electrons by observing diffraction patterns from a nickel crystal. The measured wavelength matched de Broglie's prediction, providing direct evidence for matter...
The experiment confirmed de Broglie's hypothesis that matter exhibits wave-like behavior.
Electrons were scattered off a nickel crystal, producing a diffraction pattern.
The observed wavelength matched the de Broglie wavelength calculated from the accelerating voltage.
~8 min · full explanation, examples & memory tricks in the app
❓ Leveled MCQ practice
Try the smart MCQs from this kit
19 questions laddered from warm-up to topper-level, each with an explanation. A taste:
What did the Davisson-Germer experiment conclusively demonstrate?
Beginner
A Light is purely a particleB Atoms are indivisibleC Particles have no wave natureD Electrons exhibit wave nature
Show answer & explanation
Electrons exhibit wave nature
The experiment showed diffraction of electrons, confirming de Broglie's hypothesis of wave-particle duality.
In the Davisson-Germer experiment, electrons were scattered off a crystal of:
Beginner
A CopperB NickelC SiliconD Graphite
Show answer & explanation
Nickel
Davisson and Germer used a nickel crystal to observe diffraction patterns.
The diffraction pattern observed in the Davisson-Germer experiment is due to:
Intermediate
A Photoelectric effectB Bragg reflection of electron wavesC Compton scatteringD X-ray interference
Show answer & explanation
Bragg reflection of electron waves
The electron waves reflected from crystal planes interfere constructively according to Bragg's law.
The accelerating voltage used in the Davisson-Germer experiment that produced the strongest diffraction was approximately:
Intermediate
A 12 VB 200 VC 54 VD 100 V
Show answer & explanation
54 V
At 54 V, the electron wavelength matched the spacing, giving a pronounced diffraction maximum.
🃏 Flashcards
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17 flashcards in this kit — the app reviews them with
spaced repetition so the right card returns on the right day.
🎮 Learning games
Play your way through this kit
Every game is built from this kit's own content — scores feed your
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Word Match True False Memory Match Flashcard Battle Speed Quiz Sequence Builder Revision Battle Playable in the app
The full Veda Bites deck, complete notes, spaced-repetition
flashcards, leveled MCQs, tests and games for this kit — plus
Daily Facts and the Arena, every day.