Diffraction
PHXII10:WAVE OPTICS

367721 A single slit of width \(0.20\,mm\) is illustrated with light of wavelength \(500\,nm\). The observing screen is placed \(80\,cm\) from the slit. The width of the central bright fringe will be:

1 \(1\,mm\)
2 \(5\,mm\)
3 \(10\,mm\)
4 \(4\,mm\)
PHXII10:WAVE OPTICS

367722 In Fraunhofer diffraction pattern, slit width is \(0.2mm{\rm{ }}\) and screen is at \(2m\) away from the lens. If wavelength of light used is \(5000\mathop A\limits^o \) , then the distance between the first minimum on either side of the central maximum is ( \(\theta \) is small and measured in radiant)

1 \({10^{ - 1}}m\)
2 \({10^{ - 2}}m\)
3 \(2 \times {10^{ - 2}}m\)
4 \(2 \times {10^{ - 1}}m{\rm{ }}\)
PHXII10:WAVE OPTICS

367723 A beam of light of wavelength \(600\,nm\) from a distant source falls on a single slit \(1\,mm\) wide and the resulting diffraction pattern is observed on a screen \(2\,m\) away. The distance between the first dark fringes on either side of the central bright fringe is

1 \(1.2\,cm\)
2 \(1.2\,mm\)
3 \(2.4\,cm\)
4 \(2.4\,mm\)
PHXII10:WAVE OPTICS

367724 In Fraunhofer diffraction the centre of diffraction image is:

1 Always bright
2 Always dark
3 Sometimes dark and sometimes bright
4 Bright for large wavelength and dark for low wavelength
PHXII10:WAVE OPTICS

367725 Visible light of wavelength \(6000 \times {10^{ - 8}}\,cm\) falls normally on a single slit and produces a diffraction pattern. It is found that the second diffraction minimum is at \(60^{\circ}\) from the central maximum. If the first minimum is produced at \(\theta_{1}\), then \(\theta_{1}\) is close to -

1 \(45^{\circ}\)
2 \(20^{\circ}\)
3 \(30^{\circ}\)
4 \(25^{\circ}\)
PHXII10:WAVE OPTICS

367721 A single slit of width \(0.20\,mm\) is illustrated with light of wavelength \(500\,nm\). The observing screen is placed \(80\,cm\) from the slit. The width of the central bright fringe will be:

1 \(1\,mm\)
2 \(5\,mm\)
3 \(10\,mm\)
4 \(4\,mm\)
PHXII10:WAVE OPTICS

367722 In Fraunhofer diffraction pattern, slit width is \(0.2mm{\rm{ }}\) and screen is at \(2m\) away from the lens. If wavelength of light used is \(5000\mathop A\limits^o \) , then the distance between the first minimum on either side of the central maximum is ( \(\theta \) is small and measured in radiant)

1 \({10^{ - 1}}m\)
2 \({10^{ - 2}}m\)
3 \(2 \times {10^{ - 2}}m\)
4 \(2 \times {10^{ - 1}}m{\rm{ }}\)
PHXII10:WAVE OPTICS

367723 A beam of light of wavelength \(600\,nm\) from a distant source falls on a single slit \(1\,mm\) wide and the resulting diffraction pattern is observed on a screen \(2\,m\) away. The distance between the first dark fringes on either side of the central bright fringe is

1 \(1.2\,cm\)
2 \(1.2\,mm\)
3 \(2.4\,cm\)
4 \(2.4\,mm\)
PHXII10:WAVE OPTICS

367724 In Fraunhofer diffraction the centre of diffraction image is:

1 Always bright
2 Always dark
3 Sometimes dark and sometimes bright
4 Bright for large wavelength and dark for low wavelength
PHXII10:WAVE OPTICS

367725 Visible light of wavelength \(6000 \times {10^{ - 8}}\,cm\) falls normally on a single slit and produces a diffraction pattern. It is found that the second diffraction minimum is at \(60^{\circ}\) from the central maximum. If the first minimum is produced at \(\theta_{1}\), then \(\theta_{1}\) is close to -

1 \(45^{\circ}\)
2 \(20^{\circ}\)
3 \(30^{\circ}\)
4 \(25^{\circ}\)
PHXII10:WAVE OPTICS

367721 A single slit of width \(0.20\,mm\) is illustrated with light of wavelength \(500\,nm\). The observing screen is placed \(80\,cm\) from the slit. The width of the central bright fringe will be:

1 \(1\,mm\)
2 \(5\,mm\)
3 \(10\,mm\)
4 \(4\,mm\)
PHXII10:WAVE OPTICS

367722 In Fraunhofer diffraction pattern, slit width is \(0.2mm{\rm{ }}\) and screen is at \(2m\) away from the lens. If wavelength of light used is \(5000\mathop A\limits^o \) , then the distance between the first minimum on either side of the central maximum is ( \(\theta \) is small and measured in radiant)

1 \({10^{ - 1}}m\)
2 \({10^{ - 2}}m\)
3 \(2 \times {10^{ - 2}}m\)
4 \(2 \times {10^{ - 1}}m{\rm{ }}\)
PHXII10:WAVE OPTICS

367723 A beam of light of wavelength \(600\,nm\) from a distant source falls on a single slit \(1\,mm\) wide and the resulting diffraction pattern is observed on a screen \(2\,m\) away. The distance between the first dark fringes on either side of the central bright fringe is

1 \(1.2\,cm\)
2 \(1.2\,mm\)
3 \(2.4\,cm\)
4 \(2.4\,mm\)
PHXII10:WAVE OPTICS

367724 In Fraunhofer diffraction the centre of diffraction image is:

1 Always bright
2 Always dark
3 Sometimes dark and sometimes bright
4 Bright for large wavelength and dark for low wavelength
PHXII10:WAVE OPTICS

367725 Visible light of wavelength \(6000 \times {10^{ - 8}}\,cm\) falls normally on a single slit and produces a diffraction pattern. It is found that the second diffraction minimum is at \(60^{\circ}\) from the central maximum. If the first minimum is produced at \(\theta_{1}\), then \(\theta_{1}\) is close to -

1 \(45^{\circ}\)
2 \(20^{\circ}\)
3 \(30^{\circ}\)
4 \(25^{\circ}\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXII10:WAVE OPTICS

367721 A single slit of width \(0.20\,mm\) is illustrated with light of wavelength \(500\,nm\). The observing screen is placed \(80\,cm\) from the slit. The width of the central bright fringe will be:

1 \(1\,mm\)
2 \(5\,mm\)
3 \(10\,mm\)
4 \(4\,mm\)
PHXII10:WAVE OPTICS

367722 In Fraunhofer diffraction pattern, slit width is \(0.2mm{\rm{ }}\) and screen is at \(2m\) away from the lens. If wavelength of light used is \(5000\mathop A\limits^o \) , then the distance between the first minimum on either side of the central maximum is ( \(\theta \) is small and measured in radiant)

1 \({10^{ - 1}}m\)
2 \({10^{ - 2}}m\)
3 \(2 \times {10^{ - 2}}m\)
4 \(2 \times {10^{ - 1}}m{\rm{ }}\)
PHXII10:WAVE OPTICS

367723 A beam of light of wavelength \(600\,nm\) from a distant source falls on a single slit \(1\,mm\) wide and the resulting diffraction pattern is observed on a screen \(2\,m\) away. The distance between the first dark fringes on either side of the central bright fringe is

1 \(1.2\,cm\)
2 \(1.2\,mm\)
3 \(2.4\,cm\)
4 \(2.4\,mm\)
PHXII10:WAVE OPTICS

367724 In Fraunhofer diffraction the centre of diffraction image is:

1 Always bright
2 Always dark
3 Sometimes dark and sometimes bright
4 Bright for large wavelength and dark for low wavelength
PHXII10:WAVE OPTICS

367725 Visible light of wavelength \(6000 \times {10^{ - 8}}\,cm\) falls normally on a single slit and produces a diffraction pattern. It is found that the second diffraction minimum is at \(60^{\circ}\) from the central maximum. If the first minimum is produced at \(\theta_{1}\), then \(\theta_{1}\) is close to -

1 \(45^{\circ}\)
2 \(20^{\circ}\)
3 \(30^{\circ}\)
4 \(25^{\circ}\)
PHXII10:WAVE OPTICS

367721 A single slit of width \(0.20\,mm\) is illustrated with light of wavelength \(500\,nm\). The observing screen is placed \(80\,cm\) from the slit. The width of the central bright fringe will be:

1 \(1\,mm\)
2 \(5\,mm\)
3 \(10\,mm\)
4 \(4\,mm\)
PHXII10:WAVE OPTICS

367722 In Fraunhofer diffraction pattern, slit width is \(0.2mm{\rm{ }}\) and screen is at \(2m\) away from the lens. If wavelength of light used is \(5000\mathop A\limits^o \) , then the distance between the first minimum on either side of the central maximum is ( \(\theta \) is small and measured in radiant)

1 \({10^{ - 1}}m\)
2 \({10^{ - 2}}m\)
3 \(2 \times {10^{ - 2}}m\)
4 \(2 \times {10^{ - 1}}m{\rm{ }}\)
PHXII10:WAVE OPTICS

367723 A beam of light of wavelength \(600\,nm\) from a distant source falls on a single slit \(1\,mm\) wide and the resulting diffraction pattern is observed on a screen \(2\,m\) away. The distance between the first dark fringes on either side of the central bright fringe is

1 \(1.2\,cm\)
2 \(1.2\,mm\)
3 \(2.4\,cm\)
4 \(2.4\,mm\)
PHXII10:WAVE OPTICS

367724 In Fraunhofer diffraction the centre of diffraction image is:

1 Always bright
2 Always dark
3 Sometimes dark and sometimes bright
4 Bright for large wavelength and dark for low wavelength
PHXII10:WAVE OPTICS

367725 Visible light of wavelength \(6000 \times {10^{ - 8}}\,cm\) falls normally on a single slit and produces a diffraction pattern. It is found that the second diffraction minimum is at \(60^{\circ}\) from the central maximum. If the first minimum is produced at \(\theta_{1}\), then \(\theta_{1}\) is close to -

1 \(45^{\circ}\)
2 \(20^{\circ}\)
3 \(30^{\circ}\)
4 \(25^{\circ}\)