Answer:
Option A
A blank is measured to remove the signal caused by the cuvette walls and solvent
Explanation:
Spectrophotometer is an instrument for measuring the absorbance or transmittance of the liquid in terms of wave function. The blank solutions is used for calibration of spectrophotometer while the cuvette is the container where the liquid sample is taken in the spectrophotometer. The absorbance of blank solution is known as zero hence the name blank solution. Normally, a blank is is measured to eliminate signal caused by cuvette walls on solvent and results into the formation of solute peaks in the spectra.
Answer:
I think 1. is 17 and 2. is 600
Explanation:
sorry its been a while..
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Answer:</h2>
<h3>b. E</h3>
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Explanation:</h2>
<h3>"E" is used to represent an electric field of an object. </h3>
<h2>Hope it helps </h2><h2 />
Answer:
The energy contained in a single pulse is 90,200 J.
Explanation:
Given;
power of the laser, P = 82 TW = 82 x 10¹² W
time taken by the laser to provide the power, t = 1.1 ns = 1.1 x 10⁻⁹ s
the wavelength of the laser, λ = 0.24 μm = 0.24 x 10⁻⁶ m
The energy contained in a single pulse is calculated as;
E = Pt
where;
P is the power of each laser
t is the time to generate the power
E = (82 x 10¹²)(1.1 x 10⁻⁹)
E = 90,200 J
Therefore, the energy contained in a single pulse is 90,200 J