Diffraction
« First Topic in Next Topic: Doppler Effect for Light »
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXII10:WAVE OPTICS

367700 The diffraction pattern of a light of wavelength \(400\,nm\) diffracting from a slit of width \(0.2\,mm\) is focused on the focal plane of a convex lens of focal length \(100\,cm.\) The width of the \(1^{\mathrm{st}}\) secondary maxima will be

1 \(0.2\,mm\)
2 \(2\,cm\)
3 \(2\,mm\)
4 \(0.02\,mm\)
JEE - 2024
PHXII10:WAVE OPTICS

367701 In a single slit diffraction, the width of slit is \(0.5cm,{\rm{ }}\) focal length of lens is \(40\,cm\) , and wavelength of light is \(4890\mathop A\limits^ \circ \) The distance of first dark fringe is

1 \(2 \times {10^{ - 5}}m\)
2 \(4 \times {10^{ - 5}}m\)
3 \(6 \times {10^{ - 5}}m\)
4 \(8 \times {10^{ - 5}}m\)
PHXII10:WAVE OPTICS

367702 A slit \(4\,cm\) wide is irradiated with microwaves of wavelength \(2\,cm\). What will be angular spread of central maximum, assuming incidence normal to the plane of the slit?

1 \(30^{\circ}\)
2 \(40^{\circ}\)
3 \(45^{\circ}\)
4 \(60^{\circ}\)
PHXII10:WAVE OPTICS

367703 The slit width, when a light of wavelength \(6500\mathop A\limits^ \circ \) is incident on a slit, if first minima for red light is at \({30^ \circ }\), is

1 \(1 \times {10^{ - 6}}\;m\)
2 \(5.2 \times {10^{ - 6}}\;m\)
3 \(1.3 \times {10^{ - 6}}\;m\)
4 \(2.6 \times {10^{ - 6}}\;m\)
NEET DIGITAL LIBRARY
PHXII10:WAVE OPTICS

367700 The diffraction pattern of a light of wavelength \(400\,nm\) diffracting from a slit of width \(0.2\,mm\) is focused on the focal plane of a convex lens of focal length \(100\,cm.\) The width of the \(1^{\mathrm{st}}\) secondary maxima will be

1 \(0.2\,mm\)
2 \(2\,cm\)
3 \(2\,mm\)
4 \(0.02\,mm\)
JEE - 2024
PHXII10:WAVE OPTICS

367701 In a single slit diffraction, the width of slit is \(0.5cm,{\rm{ }}\) focal length of lens is \(40\,cm\) , and wavelength of light is \(4890\mathop A\limits^ \circ \) The distance of first dark fringe is

1 \(2 \times {10^{ - 5}}m\)
2 \(4 \times {10^{ - 5}}m\)
3 \(6 \times {10^{ - 5}}m\)
4 \(8 \times {10^{ - 5}}m\)
PHXII10:WAVE OPTICS

367702 A slit \(4\,cm\) wide is irradiated with microwaves of wavelength \(2\,cm\). What will be angular spread of central maximum, assuming incidence normal to the plane of the slit?

1 \(30^{\circ}\)
2 \(40^{\circ}\)
3 \(45^{\circ}\)
4 \(60^{\circ}\)
PHXII10:WAVE OPTICS

367703 The slit width, when a light of wavelength \(6500\mathop A\limits^ \circ \) is incident on a slit, if first minima for red light is at \({30^ \circ }\), is

1 \(1 \times {10^{ - 6}}\;m\)
2 \(5.2 \times {10^{ - 6}}\;m\)
3 \(1.3 \times {10^{ - 6}}\;m\)
4 \(2.6 \times {10^{ - 6}}\;m\)
Join With Us for More Updates
PHXII10:WAVE OPTICS

367700 The diffraction pattern of a light of wavelength \(400\,nm\) diffracting from a slit of width \(0.2\,mm\) is focused on the focal plane of a convex lens of focal length \(100\,cm.\) The width of the \(1^{\mathrm{st}}\) secondary maxima will be

1 \(0.2\,mm\)
2 \(2\,cm\)
3 \(2\,mm\)
4 \(0.02\,mm\)
JEE - 2024
PHXII10:WAVE OPTICS

367701 In a single slit diffraction, the width of slit is \(0.5cm,{\rm{ }}\) focal length of lens is \(40\,cm\) , and wavelength of light is \(4890\mathop A\limits^ \circ \) The distance of first dark fringe is

1 \(2 \times {10^{ - 5}}m\)
2 \(4 \times {10^{ - 5}}m\)
3 \(6 \times {10^{ - 5}}m\)
4 \(8 \times {10^{ - 5}}m\)
PHXII10:WAVE OPTICS

367702 A slit \(4\,cm\) wide is irradiated with microwaves of wavelength \(2\,cm\). What will be angular spread of central maximum, assuming incidence normal to the plane of the slit?

1 \(30^{\circ}\)
2 \(40^{\circ}\)
3 \(45^{\circ}\)
4 \(60^{\circ}\)
PHXII10:WAVE OPTICS

367703 The slit width, when a light of wavelength \(6500\mathop A\limits^ \circ \) is incident on a slit, if first minima for red light is at \({30^ \circ }\), is

1 \(1 \times {10^{ - 6}}\;m\)
2 \(5.2 \times {10^{ - 6}}\;m\)
3 \(1.3 \times {10^{ - 6}}\;m\)
4 \(2.6 \times {10^{ - 6}}\;m\)
For More Updates join with Us
PHXII10:WAVE OPTICS

367700 The diffraction pattern of a light of wavelength \(400\,nm\) diffracting from a slit of width \(0.2\,mm\) is focused on the focal plane of a convex lens of focal length \(100\,cm.\) The width of the \(1^{\mathrm{st}}\) secondary maxima will be

1 \(0.2\,mm\)
2 \(2\,cm\)
3 \(2\,mm\)
4 \(0.02\,mm\)
JEE - 2024
PHXII10:WAVE OPTICS

367701 In a single slit diffraction, the width of slit is \(0.5cm,{\rm{ }}\) focal length of lens is \(40\,cm\) , and wavelength of light is \(4890\mathop A\limits^ \circ \) The distance of first dark fringe is

1 \(2 \times {10^{ - 5}}m\)
2 \(4 \times {10^{ - 5}}m\)
3 \(6 \times {10^{ - 5}}m\)
4 \(8 \times {10^{ - 5}}m\)
PHXII10:WAVE OPTICS

367702 A slit \(4\,cm\) wide is irradiated with microwaves of wavelength \(2\,cm\). What will be angular spread of central maximum, assuming incidence normal to the plane of the slit?

1 \(30^{\circ}\)
2 \(40^{\circ}\)
3 \(45^{\circ}\)
4 \(60^{\circ}\)
PHXII10:WAVE OPTICS

367703 The slit width, when a light of wavelength \(6500\mathop A\limits^ \circ \) is incident on a slit, if first minima for red light is at \({30^ \circ }\), is

1 \(1 \times {10^{ - 6}}\;m\)
2 \(5.2 \times {10^{ - 6}}\;m\)
3 \(1.3 \times {10^{ - 6}}\;m\)
4 \(2.6 \times {10^{ - 6}}\;m\)
NEET DIGITAL LIBRARY