Two people cannot hear each other on the surface of the Moon because there is no atmosphere on the Moon. Sound waves require a medium, such as air or water, to travel and be heard. The Moon’s lack of atmosphere ...
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Sound travels fastest through Steel. Steel has a higher density and elasticity compared to other substances listed, allowing sound waves to propagate faster. This property makes steel an excellent conductor of sound in industrial and structural applications.
The method used to ward off insects and harmful elements from homes is Ultrasonic wave. Ultrasonic devices emit high-frequency waves that are uncomfortable for pests like insects and rodents, encouraging them to leave the area. This technology is popular for ...
A white and smooth surface is a poor absorber of heat and a good reflector. It reflects most of the incoming light and heat, minimizing absorption and thus remaining cooler.
A black body can absorb radiation from all wavelengths. As a theoretical concept, a black body absorbs all radiation incident upon it, regardless of the wavelength. This characteristic makes it an ideal absorber and emitter of radiation, which forms the ...