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Physics
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Explain the wave - particle duality

If electrons are fired through a thin piece of graphite towards a screen an interference pattern forms.We can explain this by thinking of the electrons as having a wavelength, called the de Broglie wavele...

Answered by Physics tutor
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Describe and explain the photoelectric effect.

Consider a single photon (a particle of light) of a particular energy striking the surface of a metal. If the energy of this photon exceeds the work function of the metal, it will remove a single electron...

Answered by Abbie R. Physics tutor
1315 Views

Explain how red-shift provides evidence for the Big Bang theory.

Red-shift describes the phenomenon whereby the wavelength of light from a source increases as it travels through spacetime, hence observed as being 'shifted' to the red end of the spectrum (as red light h...

Answered by Abbie R. Physics tutor
10379 Views

Describe thermal conduction

Thermal conduction is one of three types of heat transfer. It occurs when 2 objects are in contact and have a difference in temperature. The kinetic energy is passed on from the warmer object to the coole...

Answered by Lakshan T. Physics tutor
1729 Views

Students conducted a Young's experiment. Explain how pattern seen on the screen is created.

Light firstly goes through a single slit, this makes light coherent and monochromatic. Then, light diffracts on the double slit, undergoes superposition and constructively and destructively interferes cre...

Answered by Ignacy O. Physics tutor
1955 Views

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