Spectroscopy Why must the voltage supplied to a tungsten lamp be very stable? Because amount of energy the lamp emits is proportional to the fourth power of the operating voltage All of these Because if it wasn't, the lamp would bum out Because the lamp will only function at a specific voltage Because amount of energy the lamp emits is proportional to the fourth power of the operating voltage All of these Because if it wasn't, the lamp would bum out Because the lamp will only function at a specific voltage ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Molar absorbtivity is the measure of the amount of light reflected and absorbed per unit concentration amount of light absorbed per unit concentration amount of light absorbed per unit length None of these amount of light reflected and absorbed per unit concentration amount of light absorbed per unit concentration amount of light absorbed per unit length None of these ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Why is it generally preferable to use absorbance as a measure of absorption rather than % transmittance? Because %T cannot be measured as accurately as absorbance Because %T is dependant on the power of the incident radiation None of these Because absorbance is proportional to the concentration of the analyte, whereas %T is not Because %T cannot be measured as accurately as absorbance Because %T is dependant on the power of the incident radiation None of these Because absorbance is proportional to the concentration of the analyte, whereas %T is not ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy In the past, IR spectra had to be aquired one wavelength at a time, which took a long time. Today quick spectra is due to the light is faster today that it used to be the Fourier Transfer Algorithm allows us to scan all frequencies at once absence of broad spectrum of wavelenth None of these light is faster today that it used to be the Fourier Transfer Algorithm allows us to scan all frequencies at once absence of broad spectrum of wavelenth None of these ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following is not an IR vibrational mode? Rocking Scissoring Stretching Rolling Rocking Scissoring Stretching Rolling ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy In the equation, A = ε bc, what quantity is represented by "ε"? Absorbtivity Path length None of these Molar absorbtivity Absorbtivity Path length None of these Molar absorbtivity ANSWER DOWNLOAD EXAMIANS APP
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