Question

for tracing the path of a ray of light through a glass prism the most appropriate distance between the two pins must be :

a)11 to 13cm

b)7 to 10cm

c)3 to 5cm

d)2 to 4cm

Answer 1

probably 3 - 5 cm..

Procedures-

1) Fix a sheet of a white paper on drawing board using drawing pins

2) Place a glass prism on it in such a way that it rests on its triangular base . Trace the outline of prism using pencil

3) Draw a straight line PE inclined to AB and fix two pins at point P and W on PE

4) Look for the images of pins and fix pins R and S on the straight line made from the images of P And Q

5) Remove the pins and prism

6) Line PE meets boundary of prism at point E and similarly join and produce R and S such that these lines meet the boundary of E and F .
join E and F

7)draw perpendiculars to the refracting surface AB and AC of the prism at points E and F respectively
8) Mark an angle of incidence <i, angle of emergence <e , angle of refraction <r



hope helped.

Answer 2

Answer:

c

Explanation:

(C) 3 to 5 cm

is the best ans