Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 12-science Answered

would u please explain brewsters law and malus law breafly
Asked by simistanes | 09 Mar, 2011, 01:46: PM
answered-by-expert Expert Answer
Dear student
Pls. post each question individually.
According to malus, when completely plane polarized light is incident on the analyzer, the intensity I of the light transmitted by the analyzer is directly proportional to the square of the cosine of angle between the transmission axes of the analyzer and the polarizer.
 
i.e   I ∞ cos2θ
 

Brewster's angle (also known as the polarization angle) is an angle of incidence at which light with a particular polarization is perfectly transmitted through a transparent dielectric surface, with no reflection. When unpolarized light is incident at this angle, the light that is reflected from the surface is therefore perfectly polarized.

 Hope this clarifies your doubt.

Regards

Team

Topperlearning

Answered by | 09 Mar, 2011, 10:03: AM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 12-science - Physics
find the condition for constructive and destructive interference .how does the intensity depend on the width of slit?  
Asked by shivamtkr7767 | 03 Mar, 2024, 12:45: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
find the intensity at a point on a screen in young double slit experiment where the interfering wave of equal intensity have have a path difference of lemda/4,lemda/3
Asked by tannusharan31 | 05 Nov, 2023, 05:31: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Please answer below question from 2023 board paper:  
question image
Asked by prachis14 | 06 Mar, 2023, 04:49: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
huygens wave theory ?
Asked by rajawatmeena845 | 19 Jan, 2023, 07:21: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
wave lets means
Asked by rajawatmeena845 | 19 Jan, 2023, 07:21: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
In Young's double slit experiment, the two slits are separated by 0.28mm and the screen is placed at a distance of 1.4m away from the slits. the distance between the centre fringe and the fifth dark fringe is measured to be 1.35cm . calculate the wavelength of light used. Also find the fringe width if the screen is moved 0.4m towards the slits, for the same experiment set up.
Asked by mrwballari999 | 03 Jan, 2023, 09:33: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Physic
question image
Asked by balwansungh111334 | 13 Jul, 2022, 07:34: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
A parallel beam of light of wavelength 600 nm is incident normally on a slit of width 0.2 mm. If the resulting diffraction pattern is observed on a screen 1 m away, find the distance of (i) First minimum, and (ii) Second maximum, from the central maximum. 
Asked by suman.sh01 | 21 May, 2022, 11:09: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
if separation between the two slits is increased till fringes are observed then what will happen to angular separation of fringes (my thought is here  fringes are not observed  and they are increasing till fringes show up ...so until then what will happen to angular width if we increase d-slit separation..does angular width increases or remains same  
Asked by neetaspirantdoctor | 20 May, 2022, 03:57: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Please refer to the uploaded image for the doubt
question image
Asked by arjunsah797 | 15 May, 2022, 01:18: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×