PHYSICS BOARD QUESTIONS: Do give correct answer of the 1st question."DO NOT SEND ANSWERS THROUGH LINKS"

PHYSICS BOARD QUESTIONS: Do give correct answer of the 1st question."DO NOT SEND ANSWERS THROUGH LINKS" PROGRESSIVE ENGLISH SCHOOL (L.L.C.) +971 6567 22 34, E Arab PHYSICS WORKSHEET REFRACTION AT PLANE SURFACES The diagram shows a ray Of light AO incident on a rectangular glass block, which is silvered at one sutface_ This ray is partly reflected and partly refracted Q (i)Copy the diagram and trace the path of the refracted and reflected ray. Show at least two rays emerging Out from surface PQ. (ii) How many images are formed in the above case? Which image is the brightest? Express the refractive index n of a medium: (i) [n terms Of the velocity Of light (ii) In terms of angle of incidence I in air and angle of refraction in a demser medium A ray of monochromatic light enters a liquid as shown in the diagram. Angle of incidence is 450and the angle Of refraction is 319 4 liquid (i) Show in the diagram the path Of ray after it strikes mirror and goes into air. (i i) Calculate the refractive index of the liquid A prism deviates a monochromatic ray Of light through an angle 6, When the angle Of incidence at the surface of the prism is (i) Draw a graph showing tlw• variation Of ö with i. on your graph show tlk• angle Of minimum deviation (ii) What is the relation between the angle of incidence and the angle of emergence when the ray suffers minimum deviation? . Draw a labeled ray diagram to illustrate (i) Critical angle (ii) Total internal reflection , for a ray of light moving from one medium to another _ Write a formula to express the relation between refractive index Of the denser with respect the rarer medium and its critical angle for that pair Of A stick partly immersed in water appears to be bent. Draw a ray diagram to show the bending Of the stick when placed in water and viewed Obliquely from above. A ray of monochromatic light is incident from air on a glass slab