Spectroscopy A simple harmonic oscillator may absorb energy when the frequencies match exactly when the amplitudes are the same. at no time. at anytime. when the frequencies match exactly when the amplitudes are the same. at no time. at anytime. ANSWER DOWNLOAD EXAMIANS APP
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 Because if it wasn't, the lamp would bum out Because the lamp will only function at a specific voltage All of these Because amount of energy the lamp emits is proportional to the fourth power of the operating voltage Because if it wasn't, the lamp would bum out Because the lamp will only function at a specific voltage All of these ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Beer's Law states that absorbance is proportional to the log of the concentration of the absorbing species absorbance is equal to P0 / P absorbance is proportional to both the path length and concentration of the absorbing species None of these absorbance is proportional to the log of the concentration of the absorbing species absorbance is equal to P0 / P absorbance is proportional to both the path length and concentration of the absorbing species None of these ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy In the equation, A = ε bc, what quantity is represented by "ε"? None of these Absorbtivity Molar absorbtivity Path length None of these Absorbtivity Molar absorbtivity Path length 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 None of these Because %T is dependant on the power of the incident radiation Because absorbance is proportional to the concentration of the analyte, whereas %T is not Because %T cannot be measured as accurately as absorbance None of these Because %T is dependant on the power of the incident radiation Because absorbance is proportional to the concentration of the analyte, whereas %T is not ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following will oscillate the fastest? A small mass on a stiff spring A small mass on a weak spring A large mass on a weak spring A large mass on a stiff spring A small mass on a stiff spring A small mass on a weak spring A large mass on a weak spring A large mass on a stiff spring ANSWER DOWNLOAD EXAMIANS APP
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