Coherent Sources of Light and interference of Light Constructive, Distractive
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283335 In Young's double slit experiment, the separation \(d\) between the slits is \(2 \mathrm{~mm}\), the wavelength \(\lambda\) of the light used is \(5896 \AA\) and distance \(D\) between the screen and slits is 100 \(\mathrm{cm}\). It is found that the angular width of the fringes is \(0.20^{\circ}\). To increase the fringe angular width to \(0.21^{\circ}\) (with same \(\lambda\) and \(D\) ) the separation between the slits needs to be changed to

1 \(2.1 \mathrm{~mm}\)
2 \(1.9 \mathrm{~mm}\)
3 \(1.8 \mathrm{~mm}\)
4 \(1.7 \mathrm{~mm}\)
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283336 Two slits are separated by a distance of \(0.5 \mathrm{~mm}\) and illuminated with light of \(\lambda=6000 \AA\). If the screen in placed \(2.5 \mathrm{~m}\), from the slits. The distance of the third bright image from the centre will be

1 \(1.5 \mathrm{~mm}\)
2 \(3 \mathrm{~mm}\)
3 \(6 \mathrm{~mm}\)
4 \(9 \mathrm{~mm}\)
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283337 In young's double slit experiment, the intensity of the maxima is 1 . If the width of each is doubled the intensity of the maxima will be

1 \(\frac{I}{2}\)
2 I
3 \(2 \mathrm{I}\)
4 \(4 \mathrm{I}\)
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283338 Interference fringes were produced in Young's double slit experiment using light of wavelength \(6000 \AA\). When a transparent film of thickness \(3 \times 10^{-3} \mathrm{~cm}\) was paced over one of the slits, the fringe pattern is shifted by a distance equal to 20 fringe widths. The refractive index of the material of the film is

1 1.25
2 1.33
3 1.4
4 1.5
WAVE OPTICS

283335 In Young's double slit experiment, the separation \(d\) between the slits is \(2 \mathrm{~mm}\), the wavelength \(\lambda\) of the light used is \(5896 \AA\) and distance \(D\) between the screen and slits is 100 \(\mathrm{cm}\). It is found that the angular width of the fringes is \(0.20^{\circ}\). To increase the fringe angular width to \(0.21^{\circ}\) (with same \(\lambda\) and \(D\) ) the separation between the slits needs to be changed to

1 \(2.1 \mathrm{~mm}\)
2 \(1.9 \mathrm{~mm}\)
3 \(1.8 \mathrm{~mm}\)
4 \(1.7 \mathrm{~mm}\)
WAVE OPTICS

283336 Two slits are separated by a distance of \(0.5 \mathrm{~mm}\) and illuminated with light of \(\lambda=6000 \AA\). If the screen in placed \(2.5 \mathrm{~m}\), from the slits. The distance of the third bright image from the centre will be

1 \(1.5 \mathrm{~mm}\)
2 \(3 \mathrm{~mm}\)
3 \(6 \mathrm{~mm}\)
4 \(9 \mathrm{~mm}\)
WAVE OPTICS

283337 In young's double slit experiment, the intensity of the maxima is 1 . If the width of each is doubled the intensity of the maxima will be

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

283338 Interference fringes were produced in Young's double slit experiment using light of wavelength \(6000 \AA\). When a transparent film of thickness \(3 \times 10^{-3} \mathrm{~cm}\) was paced over one of the slits, the fringe pattern is shifted by a distance equal to 20 fringe widths. The refractive index of the material of the film is

1 1.25
2 1.33
3 1.4
4 1.5
WAVE OPTICS

283335 In Young's double slit experiment, the separation \(d\) between the slits is \(2 \mathrm{~mm}\), the wavelength \(\lambda\) of the light used is \(5896 \AA\) and distance \(D\) between the screen and slits is 100 \(\mathrm{cm}\). It is found that the angular width of the fringes is \(0.20^{\circ}\). To increase the fringe angular width to \(0.21^{\circ}\) (with same \(\lambda\) and \(D\) ) the separation between the slits needs to be changed to

1 \(2.1 \mathrm{~mm}\)
2 \(1.9 \mathrm{~mm}\)
3 \(1.8 \mathrm{~mm}\)
4 \(1.7 \mathrm{~mm}\)
WAVE OPTICS

283336 Two slits are separated by a distance of \(0.5 \mathrm{~mm}\) and illuminated with light of \(\lambda=6000 \AA\). If the screen in placed \(2.5 \mathrm{~m}\), from the slits. The distance of the third bright image from the centre will be

1 \(1.5 \mathrm{~mm}\)
2 \(3 \mathrm{~mm}\)
3 \(6 \mathrm{~mm}\)
4 \(9 \mathrm{~mm}\)
WAVE OPTICS

283337 In young's double slit experiment, the intensity of the maxima is 1 . If the width of each is doubled the intensity of the maxima will be

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

283338 Interference fringes were produced in Young's double slit experiment using light of wavelength \(6000 \AA\). When a transparent film of thickness \(3 \times 10^{-3} \mathrm{~cm}\) was paced over one of the slits, the fringe pattern is shifted by a distance equal to 20 fringe widths. The refractive index of the material of the film is

1 1.25
2 1.33
3 1.4
4 1.5
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
WAVE OPTICS

283335 In Young's double slit experiment, the separation \(d\) between the slits is \(2 \mathrm{~mm}\), the wavelength \(\lambda\) of the light used is \(5896 \AA\) and distance \(D\) between the screen and slits is 100 \(\mathrm{cm}\). It is found that the angular width of the fringes is \(0.20^{\circ}\). To increase the fringe angular width to \(0.21^{\circ}\) (with same \(\lambda\) and \(D\) ) the separation between the slits needs to be changed to

1 \(2.1 \mathrm{~mm}\)
2 \(1.9 \mathrm{~mm}\)
3 \(1.8 \mathrm{~mm}\)
4 \(1.7 \mathrm{~mm}\)
WAVE OPTICS

283336 Two slits are separated by a distance of \(0.5 \mathrm{~mm}\) and illuminated with light of \(\lambda=6000 \AA\). If the screen in placed \(2.5 \mathrm{~m}\), from the slits. The distance of the third bright image from the centre will be

1 \(1.5 \mathrm{~mm}\)
2 \(3 \mathrm{~mm}\)
3 \(6 \mathrm{~mm}\)
4 \(9 \mathrm{~mm}\)
WAVE OPTICS

283337 In young's double slit experiment, the intensity of the maxima is 1 . If the width of each is doubled the intensity of the maxima will be

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

283338 Interference fringes were produced in Young's double slit experiment using light of wavelength \(6000 \AA\). When a transparent film of thickness \(3 \times 10^{-3} \mathrm{~cm}\) was paced over one of the slits, the fringe pattern is shifted by a distance equal to 20 fringe widths. The refractive index of the material of the film is

1 1.25
2 1.33
3 1.4
4 1.5