Recently Active Optics Questions

In a typical Young's double slit experiment, S1 and S2 are identical slits and equidistant from a point monochromatic source S of light having wavelength λ. The distance between slits is represented by d and that between sli ...

2 Mirrors placed at an angle of ϴ. N=360°/ϴ. If NϵI N=N If Nϵ not I then N=[N] Now the book says if the position of the object is asymmetric then total number of images formed is N What does it mean by “position of the ...

is this true ? dapp = d1/0µ1 + d2/0µ2 + d3/0µ3 in this situation ! *Image* dapp --- Apparent distance IF it is True Prove It ! ( Detailed Proof Needed to understand ) ...

1) When an object is at a distance x1 and x2 from the poles of a concave mirror , imagesm of same magnification are formed. The magnitude of the focal length of the mirror is : a) \left|\frac{x_{1}+x_{2}}{2} \right| b) \left| ...

Can two sources producing monochromatic lights of different wavelengths be coherent? Please provide a clear explanation. ...

anant sir , u take very high tuition fees. ....... and whatever you teach i canot understand anything. ...

is edudigm in benachity ...

*Image* The rays are parallel to each other. What angle will the emerging rays will make with each other? please give me the steps. ...

a double seperation of 0.01mm is illuminated by white light . a coloured interference pattern is formed on the screen 100cm away. if a pin hole is placed on this screen at a distance of 2mm from the central fringe , the wavel ...

*Image* ...

1)Is the formula 'real depth/apparent depth =μ " valid if viewed from a position quite away from the normal? 2) Can there be a situation in which a light ray passes through a prism undeviated? I think it happens in grazing i ...

Can u tell me Colour depends on frequency or wavelength?? ...

*Image* detailed ans shaal be appreciated... ...

*Image* detailed ans shall be appreciated.... ...

helloo..... can ne1 tell me...... is μ a material property.......??? nd suppose the ray of light is coming from air to glass..... with an angle of incedence i and having angle of refraction r... then by Snell's law... we can ...

A thin convex lens whose focal length in air is known to be 30cm is cut into two parts by a transverse plane parallel to principal axis and 0.5cm above the principal axis. They are placed on the x-axis a shown in the figure.A ...

hey.... can ne1 plz explain the clear mirror like concepts about the real and virtual objects as well as image....... why can't V.I. be obtained on the screen...... can our eyes percieve both real as well as virtual image.... ...

*Image* above is a concave mirror with water filled up to height h as shown... take refractive index of water to be u .... take radius of curvature of concave mirror to be R ..... where should a point object on the principal ...

I was wondering on a simple thing : Why do we measure the angle of incidence or reflection (or say refraction even) w.r.t normal to the surface and why not w.r.t the horizontal surface? ...

1)Why when a convex lens having radius of curvature R, focal length f and refractive index μ is bisected horizontally along the principal axis its focal length remains the same, whereas when it is bisected vertically focal l ...

plz. explain this: when we talk of grazing incidence in case of a prism, like when light is almost parallel to one of the faces, then how does light come to kno when to go inside the prism???,as it almost paralel only in case ...

1)A particle moves perpendicularly towards a plane mirror with constant speed of 4cm/s. What is the speed of the image observed by a observer moving with 2cm/s along the same direction? Mirror is also moving with a speed of 1 ...

1)Why the speed of the image on an object moving with constant speed increases as it moves nearer and nearer to a stationary mirror? 2)How to make use of sign convention in ray optics while solving numericals? ...

As the position of an object reflected in a concave spherical mirror of 0.25 m focal length is varied the position of the image varies. Plot the image distance as a function of object distance letting the latter change from 0 ...

what is the use of first slit(barrier slit) in YDSE? ...

*Image* Two blocks of mass m lie on smooth table having reflecting surfaces AB and CD.An object O is placed b/w them and system is released.Find acc. of one image wrt other. Ignore friction ans: 7g/16 ...

What do we mean by phase difference regd waves?When I see the diagram of two waves with phase difff of pi, the crest of one is shown over trough of other, then i wonder what wud be the diagram for phase diff of 2pi and why it ...

Why is the outer layer of optic fibre has refractive index of 1.48 and inner layer has refractive index of 1.5? Why didn't they have anyy other value of refractive index? How is it applicable to total internal reflection? ...

Q.1. A man uses a concave mirror for shaving.He keeps his face at a distance of 25 cm from the mirror and gets an image which is 1.4 times enlarged.Find the focal length of the mirror. Q.2.Find the diameter of the image of th ...

Q.1. A man uses a concave mirror for shaving.He keeps his face at a distance of 25 cm from the mirror and gets an image which is 1.4 times enlarged.Find the focal length of the mirror. Q.2.Find the diameter of the image of th ...