Topic 8 (Sem 2) : Wave particle duality

The wave-particle duality of light describes light as...

• a wave only
• a particle only
• both a wave and a particle
• neither a wave nor a particle

De Broglie equation

• relates the momentum of a mass to its wavelength

• relates the energy of a mass to its wavelength

• relates the frequency of a mass to its wavelength

• relates the work function of a mass to its wavelength

If waves can behave like particles, then particles can behave like a wave. This is the idea behind...

• Quantization of Energy

• Photoelectric Effect

• Compton Effect

• deBroglie Waves

The de Broglie wave equation showed that the wavelength of any moving object is equal to

• m/hν

• h/mv

• v/mh

• hm/v

1 eV is equal to

• 1.6 × 10^-19 J
• 2.0 × 10^-20 J
• 3 J
• 4 J

What is the value of the Planck constant? :

Which of the following is NOT the unit of energy

• MeV

• J

• eV

• V

Experiments on which of the following suggested the wave nature of electrons?

• electron diffraction by a crystalline material

• β⁻ decay

• line spectra of atoms

• the photoelectric effect

Which type of microscope is the MOST suitable for observing the surface of a virus?

• Transmission Electron Microscope

• Confocal Microscope

• Light Microscope

• Scanning Electron Microscope

Electron microscopes use a beam of _________________ to produce an image magnified up to 100,000 or more

• Sunlight
• Lasers
• Electrons