67 practice sets · Page 4 of 4
A polarizer and analyzer are oriented so that he amount of transmitted light is maximum .through what angle should either be the turned so that the intensity transmitted light is reduced to 0.25 time maximum intensity.
90 degree
60 degree
150 degree
160 degree
A LCD is a device which is uses the phenomenon of
optical activity
refraction
scattering
dispersion
A hologram records.............of light
Intensity
Intensity and phase
frequency
frequency and Phase
A He - Ne laser is a
Two level
Four level
Three level
One level
A half wave plate is used to add a phase difference of......................O ray and E ray
pi/2
pi
2 pi
A dichroic crystal converts UPL to PPL
reflection
Double refraction
refraction
selective absorption
A 20 cm long tube containing 48 c.c. of sugar rotes the plane of polarization by 11 degree. If the specific rotation of sugar is 66 degree, calculate the mass of sugar solution.
8 gm
4 gm
16 gm
10 gm
