State True/False for the following: a)An interference pattern is observed when two or more waves of light overlap at given point provided, the light sources are coherent, and have identical wavelengths. b)A viewing screen is separated from a double slit by 5.65 m. The distance between the two slits is 0.050 mm. A monochromatic light is directed toward the double slit and forms an interference pattern on the screen. The 1st dark fringe is 5.70 cm from the center line on the screen. Hence the wavelength of light is about 562 nm. c)The combination of rays reflected from the flat plate and the curved lens surfacegives rise to an interference pattern known as Newton's rings. d)An interferometer splits a light beam into two parts and then recombines the parts to form an interference pattern e) An electromagnetic wave undergoes a phase change of 180 upon reflectionfrom a medium that has a higher index of refraction than the one in which the wave is travelling