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ilovephysics9
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Hey guys, I am really stuck on my homework review and really require help! Someone please help ! :(
Question 1: A telescope has a focal length of 18m. If the suns diameter is about 1.39 x 10^9m and its distance from Earth is 1.49 x 10^11, how large is the telescopes image of the sun.
2. A converging mirror produces an image twice the size of the obbect. If the focal length is 20cm, find the object distance.
1/f = 1/do + 1/di
m = -di/10 = hi/10
- FOR BOTH
f = 18m
do = 1.49 x 10^11
ho = 1.39 x 10^9
1/f = 1/do + 1/d1
1/f - 1/do = 1/di
-0.56 = di
m = - (di)/do
= - (-0.56m / 1.49 x 10^11)
3.76 x 10 = m
m = hi / ho
3.76 x 10 ^10 = hi / 1.39x 10 ^...
THE FINAL ANSWER FOR THE QUESTION IS 17CM
Homework Statement
Question 1: A telescope has a focal length of 18m. If the suns diameter is about 1.39 x 10^9m and its distance from Earth is 1.49 x 10^11, how large is the telescopes image of the sun.
2. A converging mirror produces an image twice the size of the obbect. If the focal length is 20cm, find the object distance.
Homework Equations
1/f = 1/do + 1/di
m = -di/10 = hi/10
- FOR BOTH
The Attempt at a Solution
f = 18m
do = 1.49 x 10^11
ho = 1.39 x 10^9
1/f = 1/do + 1/d1
1/f - 1/do = 1/di
-0.56 = di
m = - (di)/do
= - (-0.56m / 1.49 x 10^11)
3.76 x 10 = m
m = hi / ho
3.76 x 10 ^10 = hi / 1.39x 10 ^...
THE FINAL ANSWER FOR THE QUESTION IS 17CM