10th Class
Science
Sample Paper
Science Olympiad Model Test Paper-16
question_answer
A beam of light passes from air into a substance X. If the angle of incidence be \[45{}^\circ \]and the angle of refraction be\[30{}^\circ \], calculate the refractive index of the substance X. (Given:\[\sin \,30{}^\circ =0.500,\] \[\sin \,45{}^\circ =0.707\]).