Polarisation
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PHXII10:WAVE OPTICS

367893 When unpolarised light beam is incident from air onto glass \(\left( {n = 1.5} \right)\) at the polarising angle:

1 reflected beam is polarised 100%
2 reflected and refracted beams are partially
polarised
3 the reason for option (1) is that almost all
the light is reflected
4 All of these
PHXII10:WAVE OPTICS

367894 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?

1 \(i = {\sin ^{ - 1}}\left( {\frac{1}{\mu }} \right)\)
2 \(i = {\tan ^{ - 1}}\left( {\frac{1}{\mu }} \right)\)
3 Reflected light is polarised with its electric
vector perpendicular to the plane of
incidence
4 Reflected light is polarised with its electric
vector parallel to the plane of incidence
NEET - 2018
PHXII10:WAVE OPTICS

367895 A transparent medium show relation between \(I\) and \(r\) as shown. If the speed of light in vauum is \(c\), the Brewster’s angle for the medium is
supporting img

1 \(60^\circ \)
2 \(30^\circ \)
3 \(90^\circ \)
4 \(45^\circ \)
KCET - 2019
PHXII10:WAVE OPTICS

367896 The critical angle of a certain medium is \({\sin ^{ - 1}}\left( {\frac{2}{5}} \right)\) The polarising angle of the medium is:

1 \({\sin ^{ - 1}}\left( {\frac{2}{5}} \right)\)
2 \({\tan ^{ - 1}}\left( {\frac{5}{2}} \right)\)
3 \({\tan ^{ - 1}}\left( {\frac{3}{4}} \right)\)
4 \({\tan ^{ - 1}}\left( {\frac{4}{3}} \right)\)
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PHXII10:WAVE OPTICS

367893 When unpolarised light beam is incident from air onto glass \(\left( {n = 1.5} \right)\) at the polarising angle:

1 reflected beam is polarised 100%
2 reflected and refracted beams are partially
polarised
3 the reason for option (1) is that almost all
the light is reflected
4 All of these
PHXII10:WAVE OPTICS

367894 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?

1 \(i = {\sin ^{ - 1}}\left( {\frac{1}{\mu }} \right)\)
2 \(i = {\tan ^{ - 1}}\left( {\frac{1}{\mu }} \right)\)
3 Reflected light is polarised with its electric
vector perpendicular to the plane of
incidence
4 Reflected light is polarised with its electric
vector parallel to the plane of incidence
NEET - 2018
PHXII10:WAVE OPTICS

367895 A transparent medium show relation between \(I\) and \(r\) as shown. If the speed of light in vauum is \(c\), the Brewster’s angle for the medium is
supporting img

1 \(60^\circ \)
2 \(30^\circ \)
3 \(90^\circ \)
4 \(45^\circ \)
KCET - 2019
PHXII10:WAVE OPTICS

367896 The critical angle of a certain medium is \({\sin ^{ - 1}}\left( {\frac{2}{5}} \right)\) The polarising angle of the medium is:

1 \({\sin ^{ - 1}}\left( {\frac{2}{5}} \right)\)
2 \({\tan ^{ - 1}}\left( {\frac{5}{2}} \right)\)
3 \({\tan ^{ - 1}}\left( {\frac{3}{4}} \right)\)
4 \({\tan ^{ - 1}}\left( {\frac{4}{3}} \right)\)
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PHXII10:WAVE OPTICS

367893 When unpolarised light beam is incident from air onto glass \(\left( {n = 1.5} \right)\) at the polarising angle:

1 reflected beam is polarised 100%
2 reflected and refracted beams are partially
polarised
3 the reason for option (1) is that almost all
the light is reflected
4 All of these
PHXII10:WAVE OPTICS

367894 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?

1 \(i = {\sin ^{ - 1}}\left( {\frac{1}{\mu }} \right)\)
2 \(i = {\tan ^{ - 1}}\left( {\frac{1}{\mu }} \right)\)
3 Reflected light is polarised with its electric
vector perpendicular to the plane of
incidence
4 Reflected light is polarised with its electric
vector parallel to the plane of incidence
NEET - 2018
PHXII10:WAVE OPTICS

367895 A transparent medium show relation between \(I\) and \(r\) as shown. If the speed of light in vauum is \(c\), the Brewster’s angle for the medium is
supporting img

1 \(60^\circ \)
2 \(30^\circ \)
3 \(90^\circ \)
4 \(45^\circ \)
KCET - 2019
PHXII10:WAVE OPTICS

367896 The critical angle of a certain medium is \({\sin ^{ - 1}}\left( {\frac{2}{5}} \right)\) The polarising angle of the medium is:

1 \({\sin ^{ - 1}}\left( {\frac{2}{5}} \right)\)
2 \({\tan ^{ - 1}}\left( {\frac{5}{2}} \right)\)
3 \({\tan ^{ - 1}}\left( {\frac{3}{4}} \right)\)
4 \({\tan ^{ - 1}}\left( {\frac{4}{3}} \right)\)
NEET DIGITAL LIBRARY
PHXII10:WAVE OPTICS

367893 When unpolarised light beam is incident from air onto glass \(\left( {n = 1.5} \right)\) at the polarising angle:

1 reflected beam is polarised 100%
2 reflected and refracted beams are partially
polarised
3 the reason for option (1) is that almost all
the light is reflected
4 All of these
PHXII10:WAVE OPTICS

367894 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?

1 \(i = {\sin ^{ - 1}}\left( {\frac{1}{\mu }} \right)\)
2 \(i = {\tan ^{ - 1}}\left( {\frac{1}{\mu }} \right)\)
3 Reflected light is polarised with its electric
vector perpendicular to the plane of
incidence
4 Reflected light is polarised with its electric
vector parallel to the plane of incidence
NEET - 2018
PHXII10:WAVE OPTICS

367895 A transparent medium show relation between \(I\) and \(r\) as shown. If the speed of light in vauum is \(c\), the Brewster’s angle for the medium is
supporting img

1 \(60^\circ \)
2 \(30^\circ \)
3 \(90^\circ \)
4 \(45^\circ \)
KCET - 2019
PHXII10:WAVE OPTICS

367896 The critical angle of a certain medium is \({\sin ^{ - 1}}\left( {\frac{2}{5}} \right)\) The polarising angle of the medium is:

1 \({\sin ^{ - 1}}\left( {\frac{2}{5}} \right)\)
2 \({\tan ^{ - 1}}\left( {\frac{5}{2}} \right)\)
3 \({\tan ^{ - 1}}\left( {\frac{3}{4}} \right)\)
4 \({\tan ^{ - 1}}\left( {\frac{4}{3}} \right)\)
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