when a concave mirror is placed facing the suns rays converge to a point 10 cm from the mirror. Now ,if you place a 2 cm long candles flame 20 cm away on the principal axis of mirror, where would you place a screen to obtain the image of the candle? what would be the size of the image? draw a ray diagram to justify your answer
Attachments:
Answers
Answered by
0
Answer:
20cm is the size of the object(maybe i guess)
Answered by
0
Answer:
v = - 20
Explanation:
Given :
Focal length = 10 cm
Object distance = 20 cm
We have image formula :
1 / f = 1 / v + 1 / u
1 / v = 1 / - 10 + 1 / 20
1 / v = - 1 20
v = - 20.
Therefore , screen would be placed at distance of 20 cm to get image.
We have :
m = - v / u = h_i / h_o
- 20 / 20 = h_i / 2
h_i = - 2 cm.
Hence size of the image is 2 cm.
Similar questions
Computer Science,
6 months ago
Science,
6 months ago
Physics,
1 year ago
World Languages,
1 year ago
Physics,
1 year ago
Math,
1 year ago