A brown newt sits 25 cm from a convex lens having a 12-cm focal length.Which is true of the newt's image?
A)It is real,inverted,and smaller.
B)It is real,inverted,and larger.
C)It is real,upright,and smaller.
D)It is real,upright,and larger.
E)It is virtual,upright,and smaller.

Question

Quizplus · Accepted Answer

According to the given information, the newt is located 25 cm away from a convex lens with a focal length of 12 cm. Using the lens formula, we can determine the characteristics of the image formed:
1/f = 1/v - 1/u
where f is the focal length, u is the object distance, and v is the image distance.

Plugging in the given values:
1/12 = 1/v - 1/25
Solving for v:
v = 20 cm

Since the image distance (v) is positive, the image is real. Additionally, since the object is located in front of the focal point, the image is inverted. Lastly, the image distance (v) is less than the object distance (u), so the image is smaller than the object. Therefore, the correct choice is A) It is real, inverted, and smaller.

A Brown Newt Sits 25 Cm from a Convex Lens