Suppose you conduct direct visible spectrophotometry with red fruit punch as your solution. Which wavelengths of light would you expect to be strongly absorbed? Which wavelengths are not strongly absorbed? Explain.

A solution containing 2g/liter of a light-absorbance substance in 1 cm cuvette transmits 75% of incident light of a certain wavelength. Calculate the transmission of a solution containing 4g / liter

PART C: CALCULATING THE DIAMETER OF THE FIELD OF VIEW (FOV)_ The field of view (FOV) is the circular area you can see when you look through the microscope. The diameter of the field of view is different depending on which objective lens you are using. For example, you are using the medium-power objective lens, then the area you can see is actually smaller than if you were using the low-power objective lens. Knowing The diameter of the field of view can help you estimate actual size of objects / cells seen through the microscope. When the revolving nose piece is turned to the low power objective lens, a dear plastic ruler can be placed on the microscope stage (see figure 1). Then, the coarse adjustment knob can be used to focus on the millimeter marks of the ruler making sure that one of the milimeter marks is at the left edge of the field of view (see figure 2). NOTE: Slage cip I-1000 Objects in the FOV are usually measured in micrometers (um). To convert, a FOV in mm, times it by 1000…

Please answer both questions A and B. Question b needs drawing so clearly draw what is given. An illustration (IMAGE 2) can be use as guide

What is the relationship between the periodicity scale in photonic crystals and the ability of cephalopods (cuttlefish, octopi) to use chromatic aberration for colour discrimination?

Suppose you did not observe a distinctly different image with the phase objective. What might this mean?

If you have a transparent or thin specimen, do you need to open or close the iris diaphragm? As magnification decreases, does the light intensity need to increase or decrease?