Diffraction
PHXII10:WAVE OPTICS

367726 Angular width of central maxima is \(\pi /2\) when a slit of width \('A'\) is illuminated by a light of wavelength \(7000\mathop A\limits^ \circ \) then \(a = \)

1 \(9 \times {10^{ - 9}}m\)
2 \(8.9 \times {10^{ - 7}}m\)
3 \(9 \times {10^{ - 7}}m\)
4 \(9.8 \times {10^{ - 7}}m\)
PHXII10:WAVE OPTICS

367727 A single slit of width \(b\) is illuminated by a coherent monochromatic light of wavelength \(\lambda\). If the second and fourth minima in the difdfraction pattern at distance \(1\,m\) from the slit are at \(3\,\;cm\) and \(6\,cm\) respectively from the central maximum what is the width of the central maximum? (i.e., distance between first minimum on either side of the central maximum)

1 \(4.5\,cm\)
2 \(1.5\,cm\)
3 \(6.0\,cm\)
4 \(3.0\,cm\)
PHXII10:WAVE OPTICS

367728 In a double slit experiment, the two slits are 1 \(mm\) apart and the screen is placed \(1\,m\) away. A monochromatic light wavelength \(500{\rm{ }}nm\) is used. What will be the width of each slit for obtaining ten maxima of double slit within the central maxima of single slit pattern?

1 \(0.1{\rm{ }}mm\)
2 \(0.5{\rm{ }}mm\)
3 \(0.02{\rm{ }}mm\)
4 \(0.2{\rm{ }}mm\)
PHXII10:WAVE OPTICS

367729 In a diffraction pattern due to a single slit of width \('a'\), the first minimum is observed at an angle \(30^\circ \) when light of wavelength \(5000\mathop A\limits^ \circ \) is incident on the slit. The first secondary maximum is observed at an angle of

1 \({\sin ^{ - 1}}\left( {\frac{1}{4}} \right)\)
2 \({\sin ^{ - 1}}\left( {\frac{2}{3}} \right)\)
3 \({\sin ^{ - 1}}\left( {\frac{1}{2}} \right)\)
4 \({\sin ^{ - 1}}\left( {\frac{3}{4}} \right)\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXII10:WAVE OPTICS

367726 Angular width of central maxima is \(\pi /2\) when a slit of width \('A'\) is illuminated by a light of wavelength \(7000\mathop A\limits^ \circ \) then \(a = \)

1 \(9 \times {10^{ - 9}}m\)
2 \(8.9 \times {10^{ - 7}}m\)
3 \(9 \times {10^{ - 7}}m\)
4 \(9.8 \times {10^{ - 7}}m\)
PHXII10:WAVE OPTICS

367727 A single slit of width \(b\) is illuminated by a coherent monochromatic light of wavelength \(\lambda\). If the second and fourth minima in the difdfraction pattern at distance \(1\,m\) from the slit are at \(3\,\;cm\) and \(6\,cm\) respectively from the central maximum what is the width of the central maximum? (i.e., distance between first minimum on either side of the central maximum)

1 \(4.5\,cm\)
2 \(1.5\,cm\)
3 \(6.0\,cm\)
4 \(3.0\,cm\)
PHXII10:WAVE OPTICS

367728 In a double slit experiment, the two slits are 1 \(mm\) apart and the screen is placed \(1\,m\) away. A monochromatic light wavelength \(500{\rm{ }}nm\) is used. What will be the width of each slit for obtaining ten maxima of double slit within the central maxima of single slit pattern?

1 \(0.1{\rm{ }}mm\)
2 \(0.5{\rm{ }}mm\)
3 \(0.02{\rm{ }}mm\)
4 \(0.2{\rm{ }}mm\)
PHXII10:WAVE OPTICS

367729 In a diffraction pattern due to a single slit of width \('a'\), the first minimum is observed at an angle \(30^\circ \) when light of wavelength \(5000\mathop A\limits^ \circ \) is incident on the slit. The first secondary maximum is observed at an angle of

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

367726 Angular width of central maxima is \(\pi /2\) when a slit of width \('A'\) is illuminated by a light of wavelength \(7000\mathop A\limits^ \circ \) then \(a = \)

1 \(9 \times {10^{ - 9}}m\)
2 \(8.9 \times {10^{ - 7}}m\)
3 \(9 \times {10^{ - 7}}m\)
4 \(9.8 \times {10^{ - 7}}m\)
PHXII10:WAVE OPTICS

367727 A single slit of width \(b\) is illuminated by a coherent monochromatic light of wavelength \(\lambda\). If the second and fourth minima in the difdfraction pattern at distance \(1\,m\) from the slit are at \(3\,\;cm\) and \(6\,cm\) respectively from the central maximum what is the width of the central maximum? (i.e., distance between first minimum on either side of the central maximum)

1 \(4.5\,cm\)
2 \(1.5\,cm\)
3 \(6.0\,cm\)
4 \(3.0\,cm\)
PHXII10:WAVE OPTICS

367728 In a double slit experiment, the two slits are 1 \(mm\) apart and the screen is placed \(1\,m\) away. A monochromatic light wavelength \(500{\rm{ }}nm\) is used. What will be the width of each slit for obtaining ten maxima of double slit within the central maxima of single slit pattern?

1 \(0.1{\rm{ }}mm\)
2 \(0.5{\rm{ }}mm\)
3 \(0.02{\rm{ }}mm\)
4 \(0.2{\rm{ }}mm\)
PHXII10:WAVE OPTICS

367729 In a diffraction pattern due to a single slit of width \('a'\), the first minimum is observed at an angle \(30^\circ \) when light of wavelength \(5000\mathop A\limits^ \circ \) is incident on the slit. The first secondary maximum is observed at an angle of

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

367726 Angular width of central maxima is \(\pi /2\) when a slit of width \('A'\) is illuminated by a light of wavelength \(7000\mathop A\limits^ \circ \) then \(a = \)

1 \(9 \times {10^{ - 9}}m\)
2 \(8.9 \times {10^{ - 7}}m\)
3 \(9 \times {10^{ - 7}}m\)
4 \(9.8 \times {10^{ - 7}}m\)
PHXII10:WAVE OPTICS

367727 A single slit of width \(b\) is illuminated by a coherent monochromatic light of wavelength \(\lambda\). If the second and fourth minima in the difdfraction pattern at distance \(1\,m\) from the slit are at \(3\,\;cm\) and \(6\,cm\) respectively from the central maximum what is the width of the central maximum? (i.e., distance between first minimum on either side of the central maximum)

1 \(4.5\,cm\)
2 \(1.5\,cm\)
3 \(6.0\,cm\)
4 \(3.0\,cm\)
PHXII10:WAVE OPTICS

367728 In a double slit experiment, the two slits are 1 \(mm\) apart and the screen is placed \(1\,m\) away. A monochromatic light wavelength \(500{\rm{ }}nm\) is used. What will be the width of each slit for obtaining ten maxima of double slit within the central maxima of single slit pattern?

1 \(0.1{\rm{ }}mm\)
2 \(0.5{\rm{ }}mm\)
3 \(0.02{\rm{ }}mm\)
4 \(0.2{\rm{ }}mm\)
PHXII10:WAVE OPTICS

367729 In a diffraction pattern due to a single slit of width \('a'\), the first minimum is observed at an angle \(30^\circ \) when light of wavelength \(5000\mathop A\limits^ \circ \) is incident on the slit. The first secondary maximum is observed at an angle of

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