Optics Answers

an extended source of light whose linear dimension is 0.3nm is used in young's double slit experiment .calculate the maximum seperation between the slits for which interference pattern will be observable if the wavelength of light is 580nm and seperation between the source and the slits is 0.50m.

discuss the dependence of image forming ability of an optical device on the phenomenon of diffraction .a diffraction gratting has 2000 lines .two sources of monochromatic lights emanating wave length landa1 and landa2 are just resolve by the gratting in the first order spectrum .if the mean of landa1 and landa2 is 600nm calculate difference between wavelength.

A wedge shaped film has refractive index 1.34 and thickness of extreme sides 0 (zero) and t. If a light of wavelength 492 nm is incident normally on it and 20 fringes are obtained, determine t.

A microscope has an objective of focal length 0.3cm and an ocular of focal length 2.0cm. where must the image formed by the objective be for the ocular to produce a virtual image 25cm in front of the ocular?

A source of light is located at corner inside a 3m deep pool. If you were standing 4m away on the side of the pool. (1) will the light be totally reflected? (2) if you were standing directly above the source of light ,what will be the apparent depth of the light?

two light waves propagating in the same direction are superposed .the frequency of the two light waves is the same and there is a constant phase difference between them obtain an expression for the intensity of the resultant wave

For obtaining Newton’s rings due to reflected light, a convex lens is placed on a plane glass plate and irradiated by monochromatic light. Obtain an expression showing the relation between radii of successive dark rings related to each other?

A wedge shaped film has refractive index 1.34 and thickness of extreme sides 0 (zero) and t. If a light of wavelength 492 nm is incident normally on it and 20 fringes are obtained, determine t.

A source of light is located at corner inside a 3m deep pool. If you were standing 4m away on the side of the pool.
(1) will the light be totally reflected?
(2) if you were standing directly above the source of light ,what will be the apparent depth of the light?

Light waves are propagating in vacuum. Derive the wave equation for the associated magnetic field vector. On the basis of this equation, calculate the speed of light.