Spectroscopy Which of the following components of a monochromator is the dispersing element? The entrance slit The diffraction grating The collimating lens None of these The entrance slit The diffraction grating The collimating lens None of these ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following will oscillate the fastest? A large mass on a stiff spring A small mass on a weak spring A small mass on a stiff spring A large mass on a weak spring A large mass on a stiff spring A small mass on a weak spring A small mass on a stiff spring A large mass on a weak spring ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following relationships between absorbance and %transmittance is incorrect? A = log10 100 / %T All are correct A = log10 1 / T A = 2 - log10 %T A = log10 100 / %T All are correct A = log10 1 / T A = 2 - log10 %T ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy A simple harmonic oscillator may absorb energy at no time. when the frequencies match exactly at anytime. when the amplitudes are the same. at no time. when the frequencies match exactly at anytime. when the amplitudes are the same. ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy UV-Vis spectroscopy of organic compounds is usually concerned with which electronic transition(s)? n → σ* none of these n → π* and π → π* σ → σ* n → σ* none of these n → π* and π → π* σ → σ* ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Why must the voltage supplied to a tungsten lamp be very stable? Because the lamp will only function at a specific voltage Because if it wasn't, the lamp would bum out Because amount of energy the lamp emits is proportional to the fourth power of the operating voltage All of these Because the lamp will only function at a specific voltage Because if it wasn't, the lamp would bum out Because amount of energy the lamp emits is proportional to the fourth power of the operating voltage All of these ANSWER DOWNLOAD EXAMIANS APP
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