Convex lens forms a real, point-sized image at focus, the object is placed: [1]
A. at focus
B. between F and 2F
C. at infinity
D. at, 2F
Answer:C
Convex lens forms a real, point-sized image at focus, the object is placed: [1]
A. at focus B. between F and 2F C. at infinity D. at, 2F