Wave OpticsHard
Question
Given below are two statements :
Statement-I : A plane wave after passing through prism remains as plane wave but passing through small pin hole may become spherical wave.
Statement-II : The curvature of a spherical wave emerging from a slit will increase for increasing slit width.
In the light of the above statements, choose the correct answer from the options given below.
Options
A.Both Statement-I and Statement-II are false.
B.Both Statement-I and Statement-II are true.
C.Statement-I is true but Statement-II is false.
D.Statement-I is false but Statement-II is true.
Solution
Increasing the slit width 'a' decreases the diffraction angle ( $\theta = \lambda/a$ ) and reduces the spreading of the wave. A narrower slit produces a more pronounced spherical wave (high curvature) while a wider slit leads to a flatter, less curved wave.
Create a free account to view solution
View Solution FreeMore Wave Optics Questions
The area of third half period zone initiated from a source of wavelength 5000 at point of projection one metre from the ...In the diffraction pattern of a single slit aperture, the width of the central fringe compared to widths of the other fr...The focal length of the objective and eye piece of a telescope are respectively 200 cm and 5 cm. The maximum magnifying ...Which of the following statement is true for a zone plate :...The radius of the first circle for a zone plate is 0.1 mm, then for the light of 5000 wavelength the main focal length w...