Question 1 :
A light ray is incident on a transparent medium of $\mu =$ 1.732 at the polarizing angle. The angle of refraction is :<br/>
Question 3 :
If $\mu _{O}$ and  $\mu _{e}$ are the refractive indices of a double<br/>refracting crystal, then<br/>1)  $\mu _{O}$ < $\mu _{e}$ for quartz crystal<br/>2)  ,$\mu _{O}$ > $\mu _{e}$ for calacite crystal<br/><br/>
Question 4 :
The helical structures of nucleic acids can be studied by using :<br/>
Question 5 :
At the polarising angle $(\theta _{B})$, angle of refraction is given by : <br/>
Question 6 :
A ray of light is incident on the surface of a glass plate at an angle of incidence equal to Brewster's angle $\phi$. If $\mu$ represents the refractive index of glass with respect to air, then the angle between the reflected and the refracted rays is
Question 7 :
Light waves exhibit polarization but sound waves do not exhibit polarization because they are not:<br/>
Question 8 :
A pile of plates to produce polarised light by refraction contains the glass plates kept inclined to the axis of tube at an angle (Given $\mu_g= 1.57$ and $\tan^{-1} 1.57 = 57.5^\circ{}$)<br/>
Question 9 :
A ray of light in air is incident on a glass plate at polarising angle of incidence. It suffers a deviation of $22^\circ$ on entering glass. The angle of polarization is :<br/>
Question 10 :
When an unpolarised light is polarized, then the intensity of light of the polarized wave :<br/>
Question 11 :
Plane polarized light is passed through a Polaroid. Now the Polaroid is given one complete rotation about the direction of light propagation. When viewed through another Polaroid (analyser), one of the following is observed:<br/><br/>
Question 12 :
According to Maxwell ,most of the opticalproperties of light depend on<br>
Question 13 :
According to Maxwell ,most of the opticalproperties of light depend on<br>
Question 14 :
ASSERTION (A):Hyugens' theory failed to explain polarization<br/>REASON (R): According to Hyugens' theory light is longitudinal wave<br/>
Question 19 :
Unpolarized light of intensity $I_{0}$ is incident on a polarizer and the emerging light strikes a second polarizing filter with its axis at 45$^{\circ}$ to that of the first. The intensity of the emerging beam :<br/>
Question 21 :
Consider the following statements A & B. Identify the correct choice in the given answers.<br/>(A) The refractive Index of the extra-ordinary ray depends on the angle of incidence in double refraction<br/>(B) The vibrations of light waves acquire onesidedness for both ordinary and extraordinary rays in double refraction<br/>
Question 22 :
Unpolarized light of intensity $I_{0}$ is incident on a polarizer and the emerging light strikes a second polarizing filter with its axis at 45$^{\circ}$ to that of the first. The intensity of the emerging beam :<br/>
Question 25 :
When monochromatic light is replaced by white light in Fresnel's biprism arrangement, the central fringe is
Question 28 :
The critical angle for total internal reflection for a substance is $45^{\circ}$. The polarizing angle for this substance is ($\tan 54^{\circ}44'=\sqrt{2}$) :<br/>
Question 30 :
Unpolarised light is incident from air on a plane surface of a material of refractive index $'\mu'$. At a particular angle of incidence $'i'$, it is found that the reflected and refracted rays are perpendicular to each other. Which of the following options is correct for this situation?
Question 31 :
When the light is incident at the polarizing angle on transparent medium, then the completely polarized light is
Question 34 :
When light is incident on a glass block at polarizing angle<br/>a) reflected ray is plane polarized<br/>b) reflected and refracted rays are perpendicular<br/>c) reflected and refracted rays are partially polarized<br/>d) refracted ray is partially polarised<br/>
Question 36 :
Critical angle for certain medium is $sin^{-1}(0.6)$. The polarizing angle of that medium is :<br/>
Question 37 :
A beam of light is incident on a liquid of refractive index 1.40. The reflected rays are completely polarized. The angle of refraction of the beam is ($\tan 54.5^{\circ}=1.4$):<br/>
Question 39 :
When unpolarised light passes through a Polaroid sheet the beam that emerges from it is plane polarized. This is due to selective :<br/>
Question 43 :
Why do polarized sun glasses block out some reflected light (glare), but do not block out light that has not been reflected?
Question 44 :
Pile of plates can be used to produce completely polarised light due to :<br/>
Question 46 :
Consider the following statements A & B and identify correct choice in the given answers<br/>(A) When light falls on two polaroid sheets having their axes mutually perpendicular, it is completely extinguished.<br/>(B) When polyvinyl alcohol is subjected to a large strain the molecules get oriented parallel to the direction of strain and material becomes double refractive. <br/>
Question 48 :
Plane polarized light is passed through a Polaroid. Now the Polaroid is given one complete rotation about the direction of light propagation. When viewed through another Polaroid (analyser), one of the following is observed:<br/><br/>
Question 49 :
When an unpolarised light is polarized, then the intensity of light of the polarized wave :<br/>
Question 50 :
Which of the following properties shows that light is a transverse wave?
