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ProfessorA laser produces a focused beam of coherent light with high intensity, directionality, and monochromaticity, making it suitable for precision applications like cutting, surgery, and communication. In contrast, a torch light produces a broader, less intense, and non-coherent beam of light, commonly used for general illumination purposes.
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What is the difference between lamp and torch?
A lamp is a stationary light source that usually illuminates a room, while a torch is a portable light source typically used outdoors or in emergency situations. Torches are often handheld and powered by batteries or fuel, while lamps are usually plugged into a power source.
What is the name given to the light that a torch gives out?
The light that a torch gives out is typically called a beam or a beam of light.
How much light does a torch give off?
A torch typically emits around 15-100 lumens of light, depending on the type and brand of the torch.
What is the function of the insulator in a torch?
The insulator in a torch helps to prevent the flow of electricity between different components of the torch, ensuring that the electrical current is properly directed to the desired parts, such as the light bulb or LED. This helps to maintain the functionality and safety of the torch during operation.
How does a torch produce light?
A torch produces light through a chemical reaction between the fuel source (such as propane, kerosene, or butane) and oxygen. When the fuel is ignited, it reacts with oxygen to produce heat and light. The light is the result of incandescence, where the high temperature of the reaction causes the fuel to glow and emit light.
