Coherent Sources of Light and interference of Light Constructive, Distractive
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283339 In Young's double slit experiment two slits are made apart at \(3 \mathrm{~mm}\) and the screen is placed 50 \(\mathrm{cm}\) away. The fringe width when light of frequency \(5 \times 10^{14} \mathrm{~Hz}\) used is.
(Given \(\mathbf{c}=\mathbf{3} \times 10^8 \mathrm{~m} / \mathrm{s}\) )

1 \(0.36 \times 10^{-8} \mathrm{~m}\)
2 \(1 \times 10^{-4} \mathrm{~m}\)
3 \(2.77 \times 10^{-4} \mathrm{~m}\)
4 \(1 \times 10^{-2} \mathrm{~m}\)
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283340 A laser beam is used to illuminate a double slit. The distance between the slits is \(0.93 \mathrm{~mm} \mathrm{~A}\) viewing screen is kept at a distance of \(1.2 \mathrm{~m}\) from the double slit. If the second order bright fringe \((\mathrm{m}=2)\) is \(5.1 \mathrm{~cm}\) from the center line the distance between adjacent bright fringes is

1 \(1.5 \mathrm{~cm}\)
2 \(2.6 \mathrm{~cm}\)
3 \(2.8 \mathrm{~cm}\)
4 \(3.2 \mathrm{~cm}\)
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283342 In Young's double slit experiment, slits are separated by \(2 \mathrm{~mm}\) and the screen is placed at a distance of \(1.2 \mathrm{~m}\) from the slits. Light consisting of two wavelengths \(6500 \AA\) and \(5200 \AA\) are used to obtain interference fringes. Then, the separation between the fourth bright fringes of two different patterns produced by the two wavelengths is:

1 \(0.312 \mathrm{~mm}\)
2 \(0.123 \mathrm{~mm}\)
3 \(0.213 \mathrm{~mm}\)
4 \(0.412 \mathrm{~mm}\)
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283343 In Young's double slit experiment, two wavelength \(\lambda_1=780 \mathrm{~nm}\) and \(\lambda_2=520 \mathrm{~nm}\) are used to obtain interference fringes. If the \(n^{\text {th }}\) bright band due to \(\lambda_1\) coincides with \((n+1)^{\text {th }}\) bright band due to \(\lambda_2\), then the value of \(n\) is :

1 4
2 3
3 2
4 6
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283339 In Young's double slit experiment two slits are made apart at \(3 \mathrm{~mm}\) and the screen is placed 50 \(\mathrm{cm}\) away. The fringe width when light of frequency \(5 \times 10^{14} \mathrm{~Hz}\) used is.
(Given \(\mathbf{c}=\mathbf{3} \times 10^8 \mathrm{~m} / \mathrm{s}\) )

1 \(0.36 \times 10^{-8} \mathrm{~m}\)
2 \(1 \times 10^{-4} \mathrm{~m}\)
3 \(2.77 \times 10^{-4} \mathrm{~m}\)
4 \(1 \times 10^{-2} \mathrm{~m}\)
WAVE OPTICS

283340 A laser beam is used to illuminate a double slit. The distance between the slits is \(0.93 \mathrm{~mm} \mathrm{~A}\) viewing screen is kept at a distance of \(1.2 \mathrm{~m}\) from the double slit. If the second order bright fringe \((\mathrm{m}=2)\) is \(5.1 \mathrm{~cm}\) from the center line the distance between adjacent bright fringes is

1 \(1.5 \mathrm{~cm}\)
2 \(2.6 \mathrm{~cm}\)
3 \(2.8 \mathrm{~cm}\)
4 \(3.2 \mathrm{~cm}\)
WAVE OPTICS

283342 In Young's double slit experiment, slits are separated by \(2 \mathrm{~mm}\) and the screen is placed at a distance of \(1.2 \mathrm{~m}\) from the slits. Light consisting of two wavelengths \(6500 \AA\) and \(5200 \AA\) are used to obtain interference fringes. Then, the separation between the fourth bright fringes of two different patterns produced by the two wavelengths is:

1 \(0.312 \mathrm{~mm}\)
2 \(0.123 \mathrm{~mm}\)
3 \(0.213 \mathrm{~mm}\)
4 \(0.412 \mathrm{~mm}\)
WAVE OPTICS

283343 In Young's double slit experiment, two wavelength \(\lambda_1=780 \mathrm{~nm}\) and \(\lambda_2=520 \mathrm{~nm}\) are used to obtain interference fringes. If the \(n^{\text {th }}\) bright band due to \(\lambda_1\) coincides with \((n+1)^{\text {th }}\) bright band due to \(\lambda_2\), then the value of \(n\) is :

1 4
2 3
3 2
4 6
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
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283339 In Young's double slit experiment two slits are made apart at \(3 \mathrm{~mm}\) and the screen is placed 50 \(\mathrm{cm}\) away. The fringe width when light of frequency \(5 \times 10^{14} \mathrm{~Hz}\) used is.
(Given \(\mathbf{c}=\mathbf{3} \times 10^8 \mathrm{~m} / \mathrm{s}\) )

1 \(0.36 \times 10^{-8} \mathrm{~m}\)
2 \(1 \times 10^{-4} \mathrm{~m}\)
3 \(2.77 \times 10^{-4} \mathrm{~m}\)
4 \(1 \times 10^{-2} \mathrm{~m}\)
WAVE OPTICS

283340 A laser beam is used to illuminate a double slit. The distance between the slits is \(0.93 \mathrm{~mm} \mathrm{~A}\) viewing screen is kept at a distance of \(1.2 \mathrm{~m}\) from the double slit. If the second order bright fringe \((\mathrm{m}=2)\) is \(5.1 \mathrm{~cm}\) from the center line the distance between adjacent bright fringes is

1 \(1.5 \mathrm{~cm}\)
2 \(2.6 \mathrm{~cm}\)
3 \(2.8 \mathrm{~cm}\)
4 \(3.2 \mathrm{~cm}\)
WAVE OPTICS

283342 In Young's double slit experiment, slits are separated by \(2 \mathrm{~mm}\) and the screen is placed at a distance of \(1.2 \mathrm{~m}\) from the slits. Light consisting of two wavelengths \(6500 \AA\) and \(5200 \AA\) are used to obtain interference fringes. Then, the separation between the fourth bright fringes of two different patterns produced by the two wavelengths is:

1 \(0.312 \mathrm{~mm}\)
2 \(0.123 \mathrm{~mm}\)
3 \(0.213 \mathrm{~mm}\)
4 \(0.412 \mathrm{~mm}\)
WAVE OPTICS

283343 In Young's double slit experiment, two wavelength \(\lambda_1=780 \mathrm{~nm}\) and \(\lambda_2=520 \mathrm{~nm}\) are used to obtain interference fringes. If the \(n^{\text {th }}\) bright band due to \(\lambda_1\) coincides with \((n+1)^{\text {th }}\) bright band due to \(\lambda_2\), then the value of \(n\) is :

1 4
2 3
3 2
4 6
WAVE OPTICS

283339 In Young's double slit experiment two slits are made apart at \(3 \mathrm{~mm}\) and the screen is placed 50 \(\mathrm{cm}\) away. The fringe width when light of frequency \(5 \times 10^{14} \mathrm{~Hz}\) used is.
(Given \(\mathbf{c}=\mathbf{3} \times 10^8 \mathrm{~m} / \mathrm{s}\) )

1 \(0.36 \times 10^{-8} \mathrm{~m}\)
2 \(1 \times 10^{-4} \mathrm{~m}\)
3 \(2.77 \times 10^{-4} \mathrm{~m}\)
4 \(1 \times 10^{-2} \mathrm{~m}\)
WAVE OPTICS

283340 A laser beam is used to illuminate a double slit. The distance between the slits is \(0.93 \mathrm{~mm} \mathrm{~A}\) viewing screen is kept at a distance of \(1.2 \mathrm{~m}\) from the double slit. If the second order bright fringe \((\mathrm{m}=2)\) is \(5.1 \mathrm{~cm}\) from the center line the distance between adjacent bright fringes is

1 \(1.5 \mathrm{~cm}\)
2 \(2.6 \mathrm{~cm}\)
3 \(2.8 \mathrm{~cm}\)
4 \(3.2 \mathrm{~cm}\)
WAVE OPTICS

283342 In Young's double slit experiment, slits are separated by \(2 \mathrm{~mm}\) and the screen is placed at a distance of \(1.2 \mathrm{~m}\) from the slits. Light consisting of two wavelengths \(6500 \AA\) and \(5200 \AA\) are used to obtain interference fringes. Then, the separation between the fourth bright fringes of two different patterns produced by the two wavelengths is:

1 \(0.312 \mathrm{~mm}\)
2 \(0.123 \mathrm{~mm}\)
3 \(0.213 \mathrm{~mm}\)
4 \(0.412 \mathrm{~mm}\)
WAVE OPTICS

283343 In Young's double slit experiment, two wavelength \(\lambda_1=780 \mathrm{~nm}\) and \(\lambda_2=520 \mathrm{~nm}\) are used to obtain interference fringes. If the \(n^{\text {th }}\) bright band due to \(\lambda_1\) coincides with \((n+1)^{\text {th }}\) bright band due to \(\lambda_2\), then the value of \(n\) is :

1 4
2 3
3 2
4 6