Single Slit Diffraction
Trending Questions
Q. The slits in a Young's double slit experiment have equal width and the source is placed symmetrically with respect to the slits. The intensity at the central fringe is I0. If one of the slits is closed, the intensity at this point will be
(a) I0
(b) I0/4
(c) I0/2
(d) 4I0
(a) I0
(b) I0/4
(c) I0/2
(d) 4I0
Q. The wavefronts of a light wave travelling in vacuum are given by x + y + z = c. The angle made by the direction of propagation of light with the X-axis is
(a) 0°
(b) 45°
(c) 90°
(d)
(a) 0°
(b) 45°
(c) 90°
(d)
Q.
The penetration of light into the region of geometrical shadow is called
Q. Light of wavelength λ is incident on a slit of width d. The resulting diffraction pattern is observed on a screen at a distance D. The linear width of the principal maxima is then equal to the width of the slit if D equals
- d2λ
- 3λd
- d22λ
- 2λ27d
Q. The condition for observing Fraunhofer diffraction from a single slit is that, the wave front incident on the slit should be,
- Plane
- Elliptical
- Cylindrical
- Spherical
Q. A parallel beam of monochromatic light of wavelength 6000 ˚A is incident normally on a single narrow slit of width 0.003 mm. The light is focused by a convex lens on a screen placed on the focal plane. The second maximum will be formed for the angle of diffraction equal to,
- 30∘
- 15∘
- 0∘
- 60∘
Q.
The penetration of light into the region of geometrical shadow is caused due to______.
Refraction
Interference
Diffraction
Reflection