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01-Sep-2017 06:34

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- Heat transfer Work can produce a given rise in temperature of a body.

A similar rise in temperature can be achieved by transfer of energy in another form: heat transfer; microscopic appearance. Highlighting modes of vibration by sinusoidal excitation: fundamental mode, harmonic quantification of their frequency. Free oscillations of a plucked string or struck: interpretation of the sound emitted by the superposition of these modes.

Highlighted the phenomenon of dispersion of white light through a prism: the index of a transparent medium depends on the frequency of light. Image formed by a converging spherical mirror Summit, home, principal optical axis, focal length.

Graphic constructions of the image: - An object plane perpendicular to the optical axis. Conjugation relations in algebraic form, magnification. Graphic constructions of the image: - An object plane perpendicular to the principal optical axis. Brief description and role of each component: condenser (spherical mirror), objective eye. Brief description and role of each component : - Telescope : objective eye.

- A transmitter (light source, sound source, transmitting antenna) transmits a signal that propagates this signal can be received by a receiver (eye, ear, receiving antenna).

The man is surrounded by a multitude of signals that carry information. Descartes' laws of refraction for radiation (one of the media being air). Change in the index of a transparent medium according to the radiation passing through it; qualitative interpretation of the scattering of light by a prism.

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Experimental approach to corrections of the defects of the eye (myopia, hyperopia).

- The light can propagate in a vacuum and in transparent media like air, water and glass.