7) A ray of light incident normally on one of the face of a prism of angle 30°. The value of first refracted angle r, is
(a)26° b) o c) 60' d) 30°

26number for a answer of that question answer sapai

"i have always loved contemporary art and made it a general goal to work within the field. after a few nonprofit internships at museums and galleries, i decided to try the for-profit art world and was offered a job as the ad assistant at the magazine. i much prefer the pace of the for-profit art community and have stayed with the company for three years, with a promotion to an account manager last spring."

i just did this and got a 100.