Physics-
General
Easy
Question
Two parallel beams of light of wavelength 
inclined to each other at angle 
are incident on a plane at near normal incidence. The fringe width will be :
The correct answer is:
Related Questions to study
physics-
M1 and M2 are two plane mirrors which are kept parallel to each other as shown. There is a point 'O' on perpendicular screen just infront of 'S'. What should be the wavelength of light coming from monchromatic source 'S'. So that a maxima is formed at 'O' due to interference of reflected light from both the mirrors. [Consider only 1st reflection]. 
M1 and M2 are two plane mirrors which are kept parallel to each other as shown. There is a point 'O' on perpendicular screen just infront of 'S'. What should be the wavelength of light coming from monchromatic source 'S'. So that a maxima is formed at 'O' due to interference of reflected light from both the mirrors. [Consider only 1st reflection].
physics-General
physics-
An interference is observed due to two coherent sources 'A' & 'B' having phase constant zero separated by a distance 4 along the y - axis where is the wavelength of the source. A detector D is moved on the positive x - axis. The number of points on the x - axis excluding the points , 
sat which maximum will be observed is
An interference is observed due to two coherent sources 'A' & 'B' having phase constant zero separated by a distance 4 along the y - axis where is the wavelength of the source. A detector D is moved on the positive x - axis. The number of points on the x - axis excluding the points , sat which maximum will be observed is
physics-General
physics-
In the figure shown, a parallel beam of light is incident on the plane of the slits of Young's double slit experiment. Light incident on the slit, 
passes through a medium of variable refractive index 
(where 'X' is the distance from the plane of slits as shown), up to a distance '' before falling on . Rest of the space is filled with air. If at 'O' a minima is formed, then the minimum value of the positive constant a (in terms of l and wavelength '' in air) is:
In the figure shown, a parallel beam of light is incident on the plane of the slits of Young's double slit experiment. Light incident on the slit, passes through a medium of variable refractive index (where 'X' is the distance from the plane of slits as shown), up to a distance '' before falling on . Rest of the space is filled with air. If at 'O' a minima is formed, then the minimum value of the positive constant a (in terms of l and wavelength '' in air) is:
physics-General
physics-
Two coherent light sources each of wavelength are separated by a distance 3. The total number of minima formed on line AB which runs from - 
to + is
Two coherent light sources each of wavelength are separated by a distance 3. The total number of minima formed on line AB which runs from - to + is
physics-General
chemistry-
Which of the following has no co-ordinate bond?
Which of the following has no co-ordinate bond?
chemistry-General
chemistry-
The strength of bonds by 2s-2s, 2p-2p and 2p-2s overlapping has the order:
The strength of bonds by 2s-2s, 2p-2p and 2p-2s overlapping has the order:
chemistry-General
physics-
In the figure shown if a parallel beam of white light is incident on the plane of the slits then the distance of the nearest white spot on the screen from O is: [assume 
]
In the figure shown if a parallel beam of white light is incident on the plane of the slits then the distance of the nearest white spot on the screen from O is: [assume ]
physics-General
physics-
To make the central fringe at the centre O, a mica sheet of refractive index 1.5 is introduced. Choose the correct statements (s)-
To make the central fringe at the centre O, a mica sheet of refractive index 1.5 is introduced. Choose the correct statements (s)-
physics-General
physics-
Current in the main circuit shown is
Current in the main circuit shown is
physics-General
physics-
The figure below shows current in a part of electric circuit The current i is
The figure below shows current in a part of electric circuit The current i is
physics-General
physics-
The effective resistance between A and B in the given circuit is
The effective resistance between A and B in the given circuit is
physics-General
physics-
The effective resistance between A and B is 3 
then the value of R is
The effective resistance between A and B is 3 then the value of R is
physics-General
physics-
The effective resistance between A&B in the given circuit is
The effective resistance between A&B in the given circuit is
physics-General
physics-
The current 'i' in the circuit given aside is
The current 'i' in the circuit given aside is
physics-General
physics-
Three resistances each of 3 are connected as shown in fig The resultant resistance between A and F is
Three resistances each of 3 are connected as shown in fig The resultant resistance between A and F is
physics-General
