# 19. Case Study Based –An art Projector is equipment used by artists to create exact copies of artworto enlarge artwork

19. Case Study Based –
An art Projector is equipment used by artists to create exact copies of artwor
to enlarge artwork or to reduce artwork A basie art projector used a light bu
and a lens within a box. The light rays from art work being copied are collect
onto a lenses at single point. The lens then projects the image of art work’ or
the screen as shown
Projecten
20-
work
LE
Bulo
ware)
35
a) Which of the following is true?
i) AALT SAGLM ii) AALT – ALMG
iv) ALTA-AMGL
iu) AALT-AGLA
b) By which criteria ALAT-ALGM
i) SAS ü) RHS
1) SSS iv) AAA
c) If height of original art work AT = 5inches, AL – 15 inches and
LG = 35inches. Then the height of image is
i)7 inches i) 11 inches ni) 15 inches iv) 11 inches
d) Ratio of areas of AALT and ALGM is
i)I : 7 ii) 9:49 ii) 4:17
iv) 3:7
e) ff distance of screen from lense of projector is 20 cm width of
‘Art Projector is
1) 8 inches i) 18 inches iu) 22 inches iv) 9 inches