Which of the following defines the wavelength of a wave?
2 answers:
Answer:
the distance between peaks of a wave
Explanation:
A wave is characterized by regular crests (peaks) and troughs (valleys). The wavelength of a wave is essentially the distance between two crests or two peaks. It is represented by the greek letter lambda, λ.
For a wave travelling with a speed c and having a frequency ν, the wavelength is given by the ratio of speed to the frequency. Mathematically it can be represented by the following formula:
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Answer: The mass in atoms of zinc is 0.405 g.
Explanation:
Given: Atoms of zinc =
It is known that 1 mole of every substance contains atoms. So, the number of moles in given number of atoms is as follows.
As moles is the mass of a substance divided by its molar mass. So, mass of zinc (molar mass = 65.39 g/mol) is calculated as follows.
Thus, we can conclude that the mass in atoms of zinc is 0.405 g.