1. a. A 20 cm high object is located 50 cm froma -20 cm focal length diverginglens. i. Draw a ray diagram. ii. Find the image distance. iii. Find the image height. iv. Describe the image and indicate whether it is based onthe ray diagram or on calculations.b. Light with a wavelength of 425 nm illuminates a diffractiongrating that has 2 E 6 lines/m and is 0.5 m from ascreen. Find the slit separation

A rectangle is 80 cm long and 20 cm wide. Find, to the nearestdegree, the acute angle formed at the intersection of thediagonals.

25 Centimetre Ruler Cut Outs

Ins is the pencil? In a centimetre ruler, 1 cm is fando 10 equa... | Filo

Exercise|| 9.11. First guess and then use the centimetre ruler... | Filo