Interference fringes are observed with a biprism of reflecting angle 1 degree and refractive index 1.5 on a screen 80 cm away from it. If the distance between the source and the biprism is 20 cm, calculate the fringe width when the wavelength of light used is 6900 angstrom.

A Fresnel bi-prism was used to obtain an interference fringe, the distance between the source and the prism was 30 cm, and the distance between the prism and the barrier was 70 cm.Find the distance between two consecutive fringes, given that the prism angle is 1, the refractive index of its material is 1.53 , and the wavelength of light is 5000 angstroms.

A beam of monochromatic light is diffracted by a slit of width 0.605 mm. The diffraction pattern forms on a wall 1.38 m beyond the slit. The width of the central maximum is 1.75 mm. Calculate the wavelength of the light. 402.03 Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. nm Need Help? Read It

Monochromatic light of wavelength 441 nm is incident on a narrow slit. On a sereen 2.00 m away, the distance between the second diffraction minima and the central maxima is 1.50 cm. Calculate the angle of diffraction 0 of the second minima and the width of the slit.