When light incident normally on thin film the path difference depends upon ________________?
Which is not optically active ?
Crystals of a material can behave as_________________?
In the shadow of a ball the central portion appears bright that happens due to_________________?
In double slit experiment if one of the two slit is covered then________________?
In monochromatic red light a blue book will probably appear to be_________________?
Which one of the following cannot be polarized ?
In a plane polarized light _________________?
Wavelength of X-rays falling at glancing angle of 30? on a crystal with atmic spacing 2 x 10-10 for the fist order diffraction is________________?
When one mirror of a Michelson Interferometer is moved a distance of 0.5 mm we observe 2000 fringes. What will be wavelength of light used ?
