Question Text
Question 2 :
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 3 :
At the polarising angle $(\theta _{B})$, angle of refraction is given by : <br/>
Question 4 :
Two lenses of focal lengths $+ 100 cm$ and $+ 5 cm$ are used to prepare an astronomical telescope. The minimum tube length will be : (final image is at $\displaystyle \infty $)
Question 5 :
When the light is incident at the polarizing angle on transparent medium, then the completely polarized light is
Question 6 :
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 8 :
The angular resolution of a telescope of 10 cm diameter at a wavelength of 5000Å is of the order of:<br/>
Question 10 :
Pile of plates can be used to produce completely polarised light due to :<br/>