The speed of sound is maximum in solids due to their tightly packed molecules, which facilitate faster sound wave transmission. Among the options, iron has the highest density and rigidity, leading to the fastest speed of sound. Therefore, at 20 ...
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The velocity of sound varies across different mediums and is highest in solids. This is due to the tightly packed molecules in solids, which facilitate quicker transmission of sound waves. In contrast, sound travels slower in liquids and slowest in ...
Sound waves travel fastest in solids due to the dense molecular structure that allows efficient transmission of vibrations. In liquids, sound travels slower than in solids, and it is slowest in gases due to their sparse molecular arrangement. Sound cannot ...
The speed of sound in air at room temperature (20°C) is approximately 343 meters per second. Among the given options, the closest approximation is 330 meters per second. This speed can vary slightly with changes in temperature and atmospheric conditions.
The reason thunder is heard long after the flash of lightning is the speed of light is much greater than the speed of sound. Light travels at approximately 300,000,000 meters per second, while sound travels at about 343 meters per ...
The latent heat of melting of ice is 80 Cal/g. This value represents the amount of heat required to convert 1 gram of ice at its melting point into water without changing its temperature.
The temperature of the Sun’s surface is approximately 6000K. This value refers to the photosphere, the Sun’s outer layer that emits the light we see.
In an isothermal change, the temperature of the system remains unchanged. Heat can be exchanged with the surroundings to ensure the temperature remains constant while the system undergoes expansion or compression.
The concept of internal energy is derived from the first law of thermodynamics. This law, also known as the law of energy conservation, defines internal energy as the total energy contained within a system.
The addition of impurities typically decreases the melting point of a substance. This occurs because impurities disrupt the regular arrangement of particles in the crystal lattice, weakening the cohesive forces between them. As a result, less energy is required to ...