Question

An object is placed 10 cm from a convex lens having a 15 cm focal length. What is the distance to the image? Is the image real or virtual?

a.
-30.0 cm
b.
real
c.
-3.33 cm
d.
0.0333 cm
e.
3.33 cm
f.
virtual
g.
-0.0333 cm
h.
-0.300 cm
i.
0.300 cm
j.
30.0 cm

Answer 1

The distance to the image is j. 30.0 cm and the image is b. real.

Step-by-step explanation:

The given problem involves a convex lens with a focal length of 15 cm and an object placed 10 cm from the lens. To find the distance to the image, we can use the lens formula:

1/f = 1/v - 1/u

where f is the focal length, v is the distance to the image, and u is the distance of the object from the lens. Plugging in the given values:

1/15 = 1/v - 1/10

Solving this equation gives v = 30 cm. Since the image distance is positive, the image is real. Therefore, the correct answer is j. 30.0 cm and b. real.