An interference pattern is generated by a Lloyd mirror consisting of a laser beam with an angle of 19 degrees . The first completely dark fringes appear at an angle of measured with respect to the original direction of the ray. Make a scheme of the situation

a) Calculate the ratio of the distance between the branches with respect to the wavelength of the light that illuminates them

b) Determine the smallest angle, measured with respect to the original direction of the laser beam, with which the intensity of the light is Io/m the maximum intensity on the screen, where Io is the maximum intensity and m=2

c) Describe an application case based on the interference phenomenom of the statement.

I d sene I COS 2 = cos? (Td I d sene I COS 2 = cos? (Td