Spectroscopy
Which of the following will oscillate the fastest?

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

ANSWER DOWNLOAD EXAMIANS APP

Spectroscopy
Vibrational spectroscopy is

a class of spectroscopic techniques which analyzes molecular motions
a large mass on a weak spring
an Infrared spectroscopy
a flashlight through a prism and shake it

ANSWER DOWNLOAD EXAMIANS APP

Spectroscopy
Why are rotational transitions of little use to a spectroscopist?

Because, in liquids and solids, spectral lines corresponding to rotational transitions are broadened as the result of molecular collisions and other interactions
Because rotational transitions are extremely rare
Because the energy required to induce a rotational transition is so small that it cannot be measured
All of these

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Spectroscopy