Explain why it is difficult to couple light to devices where the wavelengths of light are greater than the size of the device.
Coupling light to the device which are in smaller size compared to the wave length. Because there will be more reflection. Then the speed will increase, image resolution will be decrease. Then there will not be get correct information of that image. So the size is greater than the wavelength information will be clear.
Explain why it is difficult to couple light to devices where the wavelengths of light are...
Explain why it is difficult to couple light to devices where the wavelengths of light are greater than the size of the device.
1. Explain why it is difficult to make light emitting devices out of indirect band gap materials. 2. When a direct semiconductor is excited by absorption of photons with energy greater than the band gap, it is generally found that the luminescence spectrum is independent of the exciton frequency. Explain the phenomenon. 3. The radiative life time to of the laser transition in titanium doped sapphire is 3.9 us. The lifetime t of the excited stste is measured to be...
Assuming that all other variables remain constant, explain why light of shorter wavelength will produce a clearer image than light of longer wavelengths.
Why do plants tend to absorb the wavelengths 500-625 nm less than other wavelengths of light? (5 pts): If we conducted an experiment to cut Chlorophyll in half where we cleaved the hydrophobic tail from the porphyrin ring how would either part behave on the chromatography sheet when separated? (5pts): Now isolated on the sheet how would the individual subunits of Chlorophyll behave when we analyze their optic densities? Make sure to provide comments on both subunits. (5 pts): If...
4. a) Why is chlorophyll green? (Discuss this in terms of wavelengths of light these pigments absorb and transmit) (0.5 pts) b) What is the role of chlorophyll in light reactions? What is the role of C4 pathway in Calvin cycle? (1 pt)
Based on table 1, why Lmax shifts towards higher wavelengths when you go from ethylene to b-carotene? Figure 1. violet blue green yellow orange red purple 500 800 nm The greater the degree of conjugation of chromophores the greater the chance that the absorption of light will occur at higher wavelengths. Table 1 illustrates the effect of conjugation (where max gives the wavelength of maximum absorption): # of conjugated double bonds 175 Table 1. Compound Ethylene 1,3-Butadiene 1.3.5-Hexatricne B-Carotene 258...
Q13.31 Explain why EBITDA is more difficult to manipulate than EB IT.
3. Atoms have diameters of about 1010 m. Visible light wavelengths are about 5 x 107 m. Can visible light be used to "see" an atom? Explain why or why not
Use the idea of energy conservation to explain why the hydrogen atom only emits light of specific wavelengths. What is it about the structure of the hydrogen atom that leads to this?
Is Stock valuation is more difficult than bond valuation? Please explain why this is so. **Must provide examples.