Virtual Labs

To determine the specific rotation of a sugar using a polarimeter

1. How does polarized light differ from the ordinary light?

a: Polarized light have vibrations in single plane where as ordinary light have vibrations in more than one plane . b: Polarized light have vibrations in more than one plane where as ordinary light have vibrations in single plane c: Polarized light and ordinary light wave have opposite vibrations in the space . d: Polarized light have vibrations at 90o to the ordinary light wave vibrations.

2. What do you understand by polarized light and the plane of polarization?

a: Polarized light wave vibrations confined to single plane and plane of polarization is the plane in which the vector along which the light wave vibrates lies. b: Polarized light wave vibrations confined to more than one plane and plane of polarization is the plane in which the vector along which the light wave vibrates lies. c: Polarized light wave vibrations confined to more than one plane and plane of polarization is the plane at right angle to the vector along which the light wave vibrates lies. d: Polarized light wave vibrations confined to single plane and plane of polarization is the plane at right angle to the vector along which the light wave vibrates lies

3. What are the factors on which the optical activity of a substance depends?

a: Temperature, wavelength of light used, concentration of the substance. b: Temperature, wavelength of light used, concentration of substance and length of polarimeter tube. c: Wavelength of light used and concentration of substance. d: Temperature, wavelength of light used, and length of polarimeter tube.