Diffraction
PHXII10:WAVE OPTICS

367696 If in fraunhofer diffraction due to a single slit, the slit width is increased, then the width of the central maxima

1 Decreases
2 Remains same
3 Increases
4 Change depends on the wavelength of light used
PHXII10:WAVE OPTICS

367697 In single slit experiment, the width of the slit is reduced. Then, the linear width of the principal maxima____

1 Increases but becomes less bright
2 Decreases but becomes more bright
3 Increases but becomes more bright
4 Decreases but becomes less bright.
PHXII10:WAVE OPTICS

367698 A single slit Fraunhoffer diffraction pattern is formed with white light. For what wavelength of light the third secondary maximum in the diffraction pattern coincides with the second secondary maximum in the pattern for red light of wavelength \(7000\mathop A\limits^ \circ \)

1 \(4400\mathop A\limits^ \circ \)
2 \(4100\mathop A\limits^ \circ \)
3 \(5000\mathop A\limits^ \circ \)
4 \(9100\mathop A\limits^ \circ \)
PHXII10:WAVE OPTICS

367699 A plane wavefront of wavelength \(\lambda \) is incident on a single slit of width \(a\) . The angular width of principla maximum is

1 \(\frac{\lambda }{a}\)
2 \(\frac{{2\lambda }}{a}\)
3 \(\frac{a}{\lambda }\)
4 \(\frac{a}{{2\lambda }}\)
PHXII10:WAVE OPTICS

367696 If in fraunhofer diffraction due to a single slit, the slit width is increased, then the width of the central maxima

1 Decreases
2 Remains same
3 Increases
4 Change depends on the wavelength of light used
PHXII10:WAVE OPTICS

367697 In single slit experiment, the width of the slit is reduced. Then, the linear width of the principal maxima____

1 Increases but becomes less bright
2 Decreases but becomes more bright
3 Increases but becomes more bright
4 Decreases but becomes less bright.
PHXII10:WAVE OPTICS

367698 A single slit Fraunhoffer diffraction pattern is formed with white light. For what wavelength of light the third secondary maximum in the diffraction pattern coincides with the second secondary maximum in the pattern for red light of wavelength \(7000\mathop A\limits^ \circ \)

1 \(4400\mathop A\limits^ \circ \)
2 \(4100\mathop A\limits^ \circ \)
3 \(5000\mathop A\limits^ \circ \)
4 \(9100\mathop A\limits^ \circ \)
PHXII10:WAVE OPTICS

367699 A plane wavefront of wavelength \(\lambda \) is incident on a single slit of width \(a\) . The angular width of principla maximum is

1 \(\frac{\lambda }{a}\)
2 \(\frac{{2\lambda }}{a}\)
3 \(\frac{a}{\lambda }\)
4 \(\frac{a}{{2\lambda }}\)
PHXII10:WAVE OPTICS

367696 If in fraunhofer diffraction due to a single slit, the slit width is increased, then the width of the central maxima

1 Decreases
2 Remains same
3 Increases
4 Change depends on the wavelength of light used
PHXII10:WAVE OPTICS

367697 In single slit experiment, the width of the slit is reduced. Then, the linear width of the principal maxima____

1 Increases but becomes less bright
2 Decreases but becomes more bright
3 Increases but becomes more bright
4 Decreases but becomes less bright.
PHXII10:WAVE OPTICS

367698 A single slit Fraunhoffer diffraction pattern is formed with white light. For what wavelength of light the third secondary maximum in the diffraction pattern coincides with the second secondary maximum in the pattern for red light of wavelength \(7000\mathop A\limits^ \circ \)

1 \(4400\mathop A\limits^ \circ \)
2 \(4100\mathop A\limits^ \circ \)
3 \(5000\mathop A\limits^ \circ \)
4 \(9100\mathop A\limits^ \circ \)
PHXII10:WAVE OPTICS

367699 A plane wavefront of wavelength \(\lambda \) is incident on a single slit of width \(a\) . The angular width of principla maximum is

1 \(\frac{\lambda }{a}\)
2 \(\frac{{2\lambda }}{a}\)
3 \(\frac{a}{\lambda }\)
4 \(\frac{a}{{2\lambda }}\)
PHXII10:WAVE OPTICS

367696 If in fraunhofer diffraction due to a single slit, the slit width is increased, then the width of the central maxima

1 Decreases
2 Remains same
3 Increases
4 Change depends on the wavelength of light used
PHXII10:WAVE OPTICS

367697 In single slit experiment, the width of the slit is reduced. Then, the linear width of the principal maxima____

1 Increases but becomes less bright
2 Decreases but becomes more bright
3 Increases but becomes more bright
4 Decreases but becomes less bright.
PHXII10:WAVE OPTICS

367698 A single slit Fraunhoffer diffraction pattern is formed with white light. For what wavelength of light the third secondary maximum in the diffraction pattern coincides with the second secondary maximum in the pattern for red light of wavelength \(7000\mathop A\limits^ \circ \)

1 \(4400\mathop A\limits^ \circ \)
2 \(4100\mathop A\limits^ \circ \)
3 \(5000\mathop A\limits^ \circ \)
4 \(9100\mathop A\limits^ \circ \)
PHXII10:WAVE OPTICS

367699 A plane wavefront of wavelength \(\lambda \) is incident on a single slit of width \(a\) . The angular width of principla maximum is

1 \(\frac{\lambda }{a}\)
2 \(\frac{{2\lambda }}{a}\)
3 \(\frac{a}{\lambda }\)
4 \(\frac{a}{{2\lambda }}\)