Polarization of Light
WAVE OPTICS

283581 In a system of two crossed polarisers, it is found that the intensity of light from the second polariser is half from that of first polariser. The angle between their pass axes is:

1 \(60^{\circ}\)
2 \(30^{\circ}\)
3 \(0^0\)
4 \(45^{\circ}\)
WAVE OPTICS

283582 A beam of light \((\lambda=600 \mathrm{~nm})\) from a distant source, falls on a single slit \(1 \mathrm{~mm}\) wide and the resulting diffraction pattern is observed on a screen \(2 \mathrm{~m}\) away. The distance between the first dark fringes on either side of the central bright fringe is-

1 \(1.2 \mathrm{~cm}\)
2 \(1.2 \mathrm{~mm}\)
3 \(2.4 \mathrm{~cm}\)
4 \(2.4 \mathrm{~mm}\)
WAVE OPTICS

283583 Two polaroids are crossed. If now one of them is rotated through an angle of \(30^{\circ}\) and unpolarised light of intensity \(I_0\) is incident on the first polariod. then the intensity of transmitted light will be-

1 \(\frac{\mathrm{I}_0}{4}\)
2 \(\frac{3 \mathrm{I}_0}{4}\)
3 \(\frac{3 \mathrm{I}_0}{8}\)
4 \(\frac{\mathrm{I}_0}{8}\)
WAVE OPTICS

283586 When the angle of incidence is \(60^{\circ}\) on the surface of a glass slab, it is found that the reflected ray is completely polarised. The velocity of light in glass is

1 \(\sqrt{2} \times 10^8 \mathrm{~ms}^{-1}\)
2 \(\sqrt{3} \times 10^8 \mathrm{~ms}^{-1}\)
3 \(2 \times 10^8 \mathrm{~ms}^{-1}\)
4 \(3 \times 10^8 \mathrm{~ms}^{-1}\)
WAVE OPTICS

283587 Find the final intensity of light (I"), if the angle between the axes of two polaroids is \(60^{\circ}\).
original image

1 \(\frac{3 \mathrm{I}_0}{2}\)
2 \(\frac{\mathrm{I}_0}{2}\)
3 \(\frac{\mathrm{I}_0}{4}\)
4 \(\frac{\mathrm{I}_0}{8}\)
WAVE OPTICS

283581 In a system of two crossed polarisers, it is found that the intensity of light from the second polariser is half from that of first polariser. The angle between their pass axes is:

1 \(60^{\circ}\)
2 \(30^{\circ}\)
3 \(0^0\)
4 \(45^{\circ}\)
WAVE OPTICS

283582 A beam of light \((\lambda=600 \mathrm{~nm})\) from a distant source, falls on a single slit \(1 \mathrm{~mm}\) wide and the resulting diffraction pattern is observed on a screen \(2 \mathrm{~m}\) away. The distance between the first dark fringes on either side of the central bright fringe is-

1 \(1.2 \mathrm{~cm}\)
2 \(1.2 \mathrm{~mm}\)
3 \(2.4 \mathrm{~cm}\)
4 \(2.4 \mathrm{~mm}\)
WAVE OPTICS

283583 Two polaroids are crossed. If now one of them is rotated through an angle of \(30^{\circ}\) and unpolarised light of intensity \(I_0\) is incident on the first polariod. then the intensity of transmitted light will be-

1 \(\frac{\mathrm{I}_0}{4}\)
2 \(\frac{3 \mathrm{I}_0}{4}\)
3 \(\frac{3 \mathrm{I}_0}{8}\)
4 \(\frac{\mathrm{I}_0}{8}\)
WAVE OPTICS

283586 When the angle of incidence is \(60^{\circ}\) on the surface of a glass slab, it is found that the reflected ray is completely polarised. The velocity of light in glass is

1 \(\sqrt{2} \times 10^8 \mathrm{~ms}^{-1}\)
2 \(\sqrt{3} \times 10^8 \mathrm{~ms}^{-1}\)
3 \(2 \times 10^8 \mathrm{~ms}^{-1}\)
4 \(3 \times 10^8 \mathrm{~ms}^{-1}\)
WAVE OPTICS

283587 Find the final intensity of light (I"), if the angle between the axes of two polaroids is \(60^{\circ}\).
original image

1 \(\frac{3 \mathrm{I}_0}{2}\)
2 \(\frac{\mathrm{I}_0}{2}\)
3 \(\frac{\mathrm{I}_0}{4}\)
4 \(\frac{\mathrm{I}_0}{8}\)
WAVE OPTICS

283581 In a system of two crossed polarisers, it is found that the intensity of light from the second polariser is half from that of first polariser. The angle between their pass axes is:

1 \(60^{\circ}\)
2 \(30^{\circ}\)
3 \(0^0\)
4 \(45^{\circ}\)
WAVE OPTICS

283582 A beam of light \((\lambda=600 \mathrm{~nm})\) from a distant source, falls on a single slit \(1 \mathrm{~mm}\) wide and the resulting diffraction pattern is observed on a screen \(2 \mathrm{~m}\) away. The distance between the first dark fringes on either side of the central bright fringe is-

1 \(1.2 \mathrm{~cm}\)
2 \(1.2 \mathrm{~mm}\)
3 \(2.4 \mathrm{~cm}\)
4 \(2.4 \mathrm{~mm}\)
WAVE OPTICS

283583 Two polaroids are crossed. If now one of them is rotated through an angle of \(30^{\circ}\) and unpolarised light of intensity \(I_0\) is incident on the first polariod. then the intensity of transmitted light will be-

1 \(\frac{\mathrm{I}_0}{4}\)
2 \(\frac{3 \mathrm{I}_0}{4}\)
3 \(\frac{3 \mathrm{I}_0}{8}\)
4 \(\frac{\mathrm{I}_0}{8}\)
WAVE OPTICS

283586 When the angle of incidence is \(60^{\circ}\) on the surface of a glass slab, it is found that the reflected ray is completely polarised. The velocity of light in glass is

1 \(\sqrt{2} \times 10^8 \mathrm{~ms}^{-1}\)
2 \(\sqrt{3} \times 10^8 \mathrm{~ms}^{-1}\)
3 \(2 \times 10^8 \mathrm{~ms}^{-1}\)
4 \(3 \times 10^8 \mathrm{~ms}^{-1}\)
WAVE OPTICS

283587 Find the final intensity of light (I"), if the angle between the axes of two polaroids is \(60^{\circ}\).
original image

1 \(\frac{3 \mathrm{I}_0}{2}\)
2 \(\frac{\mathrm{I}_0}{2}\)
3 \(\frac{\mathrm{I}_0}{4}\)
4 \(\frac{\mathrm{I}_0}{8}\)
WAVE OPTICS

283581 In a system of two crossed polarisers, it is found that the intensity of light from the second polariser is half from that of first polariser. The angle between their pass axes is:

1 \(60^{\circ}\)
2 \(30^{\circ}\)
3 \(0^0\)
4 \(45^{\circ}\)
WAVE OPTICS

283582 A beam of light \((\lambda=600 \mathrm{~nm})\) from a distant source, falls on a single slit \(1 \mathrm{~mm}\) wide and the resulting diffraction pattern is observed on a screen \(2 \mathrm{~m}\) away. The distance between the first dark fringes on either side of the central bright fringe is-

1 \(1.2 \mathrm{~cm}\)
2 \(1.2 \mathrm{~mm}\)
3 \(2.4 \mathrm{~cm}\)
4 \(2.4 \mathrm{~mm}\)
WAVE OPTICS

283583 Two polaroids are crossed. If now one of them is rotated through an angle of \(30^{\circ}\) and unpolarised light of intensity \(I_0\) is incident on the first polariod. then the intensity of transmitted light will be-

1 \(\frac{\mathrm{I}_0}{4}\)
2 \(\frac{3 \mathrm{I}_0}{4}\)
3 \(\frac{3 \mathrm{I}_0}{8}\)
4 \(\frac{\mathrm{I}_0}{8}\)
WAVE OPTICS

283586 When the angle of incidence is \(60^{\circ}\) on the surface of a glass slab, it is found that the reflected ray is completely polarised. The velocity of light in glass is

1 \(\sqrt{2} \times 10^8 \mathrm{~ms}^{-1}\)
2 \(\sqrt{3} \times 10^8 \mathrm{~ms}^{-1}\)
3 \(2 \times 10^8 \mathrm{~ms}^{-1}\)
4 \(3 \times 10^8 \mathrm{~ms}^{-1}\)
WAVE OPTICS

283587 Find the final intensity of light (I"), if the angle between the axes of two polaroids is \(60^{\circ}\).
original image

1 \(\frac{3 \mathrm{I}_0}{2}\)
2 \(\frac{\mathrm{I}_0}{2}\)
3 \(\frac{\mathrm{I}_0}{4}\)
4 \(\frac{\mathrm{I}_0}{8}\)
WAVE OPTICS

283581 In a system of two crossed polarisers, it is found that the intensity of light from the second polariser is half from that of first polariser. The angle between their pass axes is:

1 \(60^{\circ}\)
2 \(30^{\circ}\)
3 \(0^0\)
4 \(45^{\circ}\)
WAVE OPTICS

283582 A beam of light \((\lambda=600 \mathrm{~nm})\) from a distant source, falls on a single slit \(1 \mathrm{~mm}\) wide and the resulting diffraction pattern is observed on a screen \(2 \mathrm{~m}\) away. The distance between the first dark fringes on either side of the central bright fringe is-

1 \(1.2 \mathrm{~cm}\)
2 \(1.2 \mathrm{~mm}\)
3 \(2.4 \mathrm{~cm}\)
4 \(2.4 \mathrm{~mm}\)
WAVE OPTICS

283583 Two polaroids are crossed. If now one of them is rotated through an angle of \(30^{\circ}\) and unpolarised light of intensity \(I_0\) is incident on the first polariod. then the intensity of transmitted light will be-

1 \(\frac{\mathrm{I}_0}{4}\)
2 \(\frac{3 \mathrm{I}_0}{4}\)
3 \(\frac{3 \mathrm{I}_0}{8}\)
4 \(\frac{\mathrm{I}_0}{8}\)
WAVE OPTICS

283586 When the angle of incidence is \(60^{\circ}\) on the surface of a glass slab, it is found that the reflected ray is completely polarised. The velocity of light in glass is

1 \(\sqrt{2} \times 10^8 \mathrm{~ms}^{-1}\)
2 \(\sqrt{3} \times 10^8 \mathrm{~ms}^{-1}\)
3 \(2 \times 10^8 \mathrm{~ms}^{-1}\)
4 \(3 \times 10^8 \mathrm{~ms}^{-1}\)
WAVE OPTICS

283587 Find the final intensity of light (I"), if the angle between the axes of two polaroids is \(60^{\circ}\).
original image

1 \(\frac{3 \mathrm{I}_0}{2}\)
2 \(\frac{\mathrm{I}_0}{2}\)
3 \(\frac{\mathrm{I}_0}{4}\)
4 \(\frac{\mathrm{I}_0}{8}\)