Algebra

posted by .

Telephoto lens. Use the formula from Exercise 67 to find the image distance i for an object that is 2,000,000 mm from a 250-mm telephoto lens. (Section 6.7(1/f = 1/0 +1/i))

• Algebra -

250 mm is the focal length, f.
2*10^6 mm (2km) is the object distance, which you call "o". (It is usually written Do.)

Solve the equation provided to compute the image distance "i".
1/i = 1/250 - 1/(2*10^9)

"i" will be only slightly larger than 250 mm

Similar Questions

1. Algebra - check to see if correct

Telephoto lens. Use the formula from Exercise 67 to find the image distance i for an object that is 2,000,000 mm from a 250-mm telephoto lens. (Section 6.7 (1/f = 1/0 +1/i) 1/i = 1/250 - 1/ (2*10^9) i=25.
2. algebra

Solve problem. Telephoto lens. find the image distance i for an object that is 2,000,000 mm from a 250-mm telephoto lens. tel formula is 1/f=1/o + 1/i 1/250=1/2,000,000 + 1/i 5i(1/250)=(1/2,000,000 + 1/i)5i 1/50i = 5i/400,000i + 5i/5i …
3. Physics ( optics)

A simple camera telephoto lens consists of two lenses. The objective lens has a focal length f1 = +41.7 cm. Precisely 36.1 cm behind this lens is a concave lens with a focal length f2 = -13.9 cm. The object to be photographed is 4.06 …
4. Physics

A simple camera telephoto lens consists of two lenses. The objective lens has a focal length f1 = +41.7 cm. Precisely 36.1 cm behind this lens is a concave lens with a focal length f2 = -13.9 cm. The object to be photographed is 4.06 …
5. Physics

A simple camera telephoto lens consists of two lenses. The objective lens has a focal length f1 = +41.7 cm. Precisely 36.1 cm behind this lens is a concave lens with a focal length f2 = -13.9 cm. The object to be photographed is 4.06 …
6. calculus problem

the thin lens equation in physics is 1/s+1/S=1/f where s is the object distance from the lens,S is the image distance from the lens,and f is the focal length of the lens.Suppose that a certain lens has a focal length of 6cm and that …
7. Physics

Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses …
8. physics

Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses …
9. physics

Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses …
10. physics

Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses …

More Similar Questions