38) A material which has the ability to rotate the direction A) optically active

Question

38) A material which has the ability to rotate the direction A) optically active. B) circularly polarized. C) diffraction limited. D) dichroic. E) birefringent. te the direction of polarization of linearly polarized light i 39) Sunlight reflected from the surface of a lake A) is unpolarized. B) is totally polarized. as undergone refraction by the surface of the lake. D) tends to be polarized with its electric field vector perpendicular to the surface o E) tends to be polarized with its electric field vector paralle f the lake. I to the surface of the lake. 40) For a beam of light, the direction of polarization is defined as A) the beam's direction of travel B) th e direction that is mutually perpendicular to the electric and magnetic field vectors. C) the direction of the electric field's vibration. D) the direction of the magnetic field's vibration.

Explanation / Answer

38 ...Answer is option A i.e optically active

39. Answer is option E i.e tends to be polarized with its electric field vector parallel to the surface of the lake.

40.answer is option C that the direction of electric field 's vibration is called direction of polarization.

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