An object placed 4 cm to the left of a positive lens of focal length 2 cm produces an image 4 cm to the right of the lens. A negative lens placed at the focal point of the positive lens as shown produces a final image 6 cm to the right of the negative lens. The negative lens has a focal length of
A) -1.5 cm
B) -3.0 cm
C) -6.0 cm
D) 10 cm
E) -2.0 cm

Question

An object placed 4 cm to the left of a positive lens of focal length 2 cm produces an image 4 cm to the right of the lens. A negative lens placed at the focal point of the positive lens as shown produces a final image 6 cm to the right of the negative lens. The negative lens has a focal length of
A) -1.5 cm 
B) -3.0 cm 
C) -6.0 cm 
D) 10 cm 
E) -2.0 cm

Quizplus · Accepted Answer

The Answer of  An object placed 4 cm to the left of a positive lens of focal length 2 cm produces an image 4 cm to the right of the lens. A negative lens placed at the focal point of the positive lens as shown produces a final image 6 cm to the right of the negative lens. The negative lens has a focal length of
A) -1.5 cm 
B) -3.0 cm 
C) -6.0 cm 
D) 10 cm 
E) -2.0 cm

An Object Placed 4 Cm to the Left of a Positive