Login
Remember
Register
EasyElimu Questions and Answers
Questions
Unanswered
Tags
Users
Ask a Question
Ask a Question
A pinhole camera forms an image of size 10cm. The Object is 5m tall and 20cm away from the pinhole camera. Find the length of the pinhole camera
0
votes
747
views
asked
May 1, 2023
in
Physics Form 1
by
0113437XXX
A pinhole camera forms an image of size 10cm.The object is 5m tall and 20cm away from the pinhole camera. Find the length of the pinhole camera
rectilinear propagation and reflection at plane surfaces
magnification
Please
log in
or
register
to answer this question.
2
Answers
0
votes
answered
Jun 12, 2023
by
anony mous
1/f = 1/v - 1/u
1/v = 1/u
1/10 = 1/20
1/v = 1/u
1/10 = 1/20
2/20 = 1/20
2 = 10
Please
log in
or
register
to add a comment.
0
votes
answered
Oct 10, 2023
by
0112160XXX
2.5
Please
log in
or
register
to add a comment.
Related questions
0
votes
1
answer
State two conditions under which a pinhole camera may form an image on its screen which has the same size as the object.
asked
Jul 7, 2021
in
Physics Form 1
by
anonymous
rectilinear propagation of light and reflection at planes
0
votes
1
answer
An object of 5 m is placed 10 m away from a
asked
Apr 8, 2022
in
Physics Form 1
by
vickyshee
rectilinear propagation and reflection at plane surfaces
0
votes
1
answer
A convex lens forms an image three times the size of the object on a screen. If the distance between the screen and the object is 120cm. Determine;
asked
Jul 13, 2021
in
Physics Form 1
by
anony mous
thin lenses
lens formula
focal length
0
votes
1
answer
a concave mirror of focal length 20 cm forms a real image three times the size of the object. If the object height is 4cm; determine, using graphical method, the:
asked
Aug 23, 2021
in
Physics Form 2
by
anony mous
reflection at plane surface
concave mirror
magnification formula
0
votes
1
answer
An object is placed 40cm in front of a concave lens of focal length 20cm; determine the position of the image.
asked
Jul 8, 2021
in
Physics Form 4
by
anonymous
thin lenses
Welcome to EasyElimu Questions and Answers, where you can ask questions and receive answers from other members of the community.
Categories
All categories
Mathematics
(632)
English
(287)
Kiswahili
(559)
Chemistry
(663)
Physics
(604)
Physics Form 1
(307)
Physics Form 2
(129)
Physics Form 3
(91)
Physics Form 4
(76)
Biology
(659)
Geography
(537)
History
(568)
CRE
(365)
IRE
(53)
Agriculture
(519)
Business Studies
(379)
Computer Studies
(20)
Home Science
(60)
General Questions
(432)
6.4k
questions
9.6k
answers
6
comments
590
users
...