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Note
Thomson's atomic model proposed that an atom is uniform sphere of positive charges (due to presence…
Note
A hearing aid is a battery-operated, an electronic device that receives sound from the atmosphere and…
Reverberation is the persistence of a sound after a sound is produced. A reverberation is created…
The speed of the sound in a medium is affected by the 1. It depends upon…
The basic way for the production of Sound is “vibration”. When an object vibrates it produces…
The summation of the atomic masses of all the atoms in a molecule of the substance…
The symbolic representation of composition is termed as the chemical formula of a compound. Two things…
A molecule is, in general, a group of two or more atoms that are chemically bounded…
Lavoisier and Joseph L. Proust proposed two laws of chemical combination. during a chemical reaction, the…
Note
Robert Whittaker grouped organisms into
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