Matter Waves-Wave Nature of Particle NEET Questions

Physics - Dual Nature of Matter and Radiation

Matter Waves-Wave Nature of Particle MCQ Questions


13.
Wave behavior has even been demonstrated for which large molecules?
A.
Single proteins
B.
DNA molecules
C.
C60 (buckyballs) and even larger molecules
D.
Viruses
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ANSWER :
C. C60 (buckyballs) and even larger molecules
14.
The fact that very large molecules show matter-wave behavior demonstrates:
A.
Matter waves are an artifact of measurement
B.
Wave-particle duality is a fundamental property of all matter, not a peculiarity of small particles
C.
Only certain special particles have matter waves
D.
Quantum mechanics breaks down for large objects
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ANSWER :
B. Wave-particle duality is a fundamental property of all matter, not a peculiarity of small particles
15.
The fundamental principle behind the electron microscope is:
A.
Magnetic fields amplify signal mechanically
B.
Electrons emit visible light when scattered
C.
Electrons have very short de Broglie wavelengths, allowing high-resolution imaging
D.
Electrons ionize the sample to make it visible
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ANSWER :
C. Electrons have very short de Broglie wavelengths, allowing high-resolution imaging
16.
Why can electron microscopes achieve much better resolution than optical microscopes?
A.
Electrons are smaller than photons
B.
de Broglie wavelength of fast electrons is much shorter than visible light wavelengths
C.
Electrons travel faster than light
D.
Magnetic lenses are more powerful than glass lenses
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ANSWER :
B. de Broglie wavelength of fast electrons is much shorter than visible light wavelengths
17.
Neutron diffraction is particularly useful for studying:
A.
Crystal structures involving light atoms (like H, Li) and magnetic structures
B.
Optical properties of glass
C.
Surface electronic states only
D.
Charge density of metals
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ANSWER :
A. Crystal structures involving light atoms (like H, Li) and magnetic structures
18.
Atom interferometry is used in modern physics for:
A.
Generating laser light
B.
Electric power generation
C.
Precision measurements of gravity, rotation, and fundamental constants
D.
Mass spectrometry
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ANSWER :
C. Precision measurements of gravity, rotation, and fundamental constants