Definition: Relating to the electrical effects that occur when light interacts with certain materials.

Example: The photoelectric effect is a key principle in the operation of solar panels.

Definition: An electron that is emitted from a material when it absorbs light or other electromagnetic radiation.

Example: When light hits the surface of the metal, a photoelectron is released.

Definition: Relating to electronic devices or effects that are influenced by light.

Example: The photoelectronic sensor detects changes in light levels to adjust the camera settings automatically.

Definition: The process of releasing electrons from a material when it is exposed to light, particularly from metals.

Example: The experiment demonstrated the phenomenon of photoemission when the light hit the metal surface.

Definition: Relating to the process where light causes the emission of electrons from a material.

Example: The photoemissive properties of the material make it suitable for use in light sensors.

Definition: A person who creates images or designs using a process called photoengraving, which involves transferring photographs onto a printing plate.

Example: The photoengraver carefully prepared the plates for the printing press.

Definition: A method of creating images or designs on a surface by using photographic techniques to transfer the image onto a plate, which is then etched for printing.

Example: The artist used photoengraving to create detailed prints of her original artwork.

Definition: The process in which a substance's atoms or molecules become excited after absorbing light energy.

Example: Photoexcitation is essential in processes like photosynthesis, where plants convert light energy into chemical energy.

Definition: Describing an atom, molecule, or ion that has gained energy and become excited as a result of absorbing light.

Example: The photoexcited molecules reacted quickly with their surroundings.

Definition: To cause a substance to become excited or energized by light, typically in a scientific context.

Example: The molecules were photoexcited by the laser beam, leading to a reaction.

Definition: The process of developing film and printing photographs from it for customers.

Example: After taking pictures on vacation, I took my film to a local shop for photofinishing.