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Question
In a diffraction pattern due to a single slit of width ‘a’, the first minimum is observed at an angle 30o when light of wavelength 5000 Å is incident on the slit. The first secondary maximum is observed at an angle of:
A.
B.
C.
D.
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- 1)
A silicon monoxide ( = 1.45) film of 100 nm thickness is used to coat a glass camera lens ( = 1.56). What wavelength of light in the visible region will be most efficiently transmitted by this system?
- 2)
In a single slit diffraction experiment, light of wavelength 600 nm is used and the first minimum is observed at an angle of 30°. The width of the slit is:
- 3)Using light from a monochromatic source to study diffraction in a single slit of width 0.1 mm, the lines width of central maxima is measured to be 5 mm on a screen held 50 cm away. The wavelength of light used is __________.
Fill in the blank with the correct answer from the options given below. - 4)Two slits are made 0.1 mm apart and the screen is placed 2 m away. The fringe separation when a light of wavelength 500 nm is used is _______________.
Fill in the blank with the correct answer from the option given below. - 5)
The position of the image produced by a concave mirror when an object is placed at a distance such that light rays from the object are parallel to the principal axis is:
- 6)A mirror producing a virtual image larger than the object is:
- 7)Two coherent sources of light interfere and produce fringe pattern on a screen. For central maximum, the phase difference between the two waves will be,
- 8)If the monochromatic source in Young’s double slit experiment is replaced by white light, then
- 9)An unpolarised light beam strikes a glass surface at Brewster’s angle. Then
- 10)
A silicon monoxide ( = 1.45) film of 100 nm thickness is used to coat a glass camera lens ( = 1.56). What wavelength of light in the visible region will be most efficiently transmitted by this system?
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Similar Questions
- 1)
A silicon monoxide ( = 1.45) film of 100 nm thickness is used to coat a glass camera lens ( = 1.56). What wavelength of light in the visible region will be most efficiently transmitted by this system?
- 2)
In a single slit diffraction experiment, light of wavelength 600 nm is used and the first minimum is observed at an angle of 30°. The width of the slit is:
- 3)Using light from a monochromatic source to study diffraction in a single slit of width 0.1 mm, the lines width of central maxima is measured to be 5 mm on a screen held 50 cm away. The wavelength of light used is __________.
Fill in the blank with the correct answer from the options given below. - 4)Two slits are made 0.1 mm apart and the screen is placed 2 m away. The fringe separation when a light of wavelength 500 nm is used is _______________.
Fill in the blank with the correct answer from the option given below. - 5)
The position of the image produced by a concave mirror when an object is placed at a distance such that light rays from the object are parallel to the principal axis is:
- 6)A mirror producing a virtual image larger than the object is:
- 7)Two coherent sources of light interfere and produce fringe pattern on a screen. For central maximum, the phase difference between the two waves will be,
- 8)If the monochromatic source in Young’s double slit experiment is replaced by white light, then
- 9)An unpolarised light beam strikes a glass surface at Brewster’s angle. Then
- 10)
A silicon monoxide ( = 1.45) film of 100 nm thickness is used to coat a glass camera lens ( = 1.56). What wavelength of light in the visible region will be most efficiently transmitted by this system?