Two identical prisms are placed in the path of white light, such that their bases are parallel [Fig.3.23]. What will be the nature of the emergent light?

What is light, Give the nature of light.

Two polarised are placed at 90^@ to each other and the intensity of transmitted light is zero. What will be the intensity of transmitted light, when one or more polaroids is placed between these two bisecting the angle between them? Take intensity of unpolarised light as I_0 ?

The refractig angle of a prism is A and the refractive index of its material is mu .When a ray of light is incident on the face AB of the prism,after refraction through the prism,the ray of light just grazes along the face AC as shown in Fig.3.21. Determine the value of the angle of incidence in terms of A and mu .

The refrating angle of a prism is 40^@ and the refractive index of its material is given by mu=1.25 + b/(delta^2) When a ray of light is incident normally on the face AB of the prism,after refraction through the prism,the ray of light just grazes along the face AC as shown in Fig.3.20. If the wavelength of the incident light is 440 nm,find the value of b.

Can white light produce interference? What is its nature?

White light is passed through a dilute solution of potasssium permagnate.The spectrum produced by the emergent light is

Light from two coherent sources is reaching the screen. If the path difference at a point on the screen for the yellow light be (3lambda)/2 , then what will be the colour of the fringe at that point?

While passing through a prism, why does the white light split into seven colours.