Multiple Choice
An object is 20 cm to the left of a lens of focal length +10 cm. A second lens, of focal length +12.5 cm, is 30 cm to the right of the first lens. The distance between the original object and the final image is:
A) 28 cm
B) 50 cm
C) 100 cm
D) 0
E) infinity
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q17: Two thin lenses (focal lengths f<sub>1</sub> and
Q25: Which instrument uses a single converging lens
Q30: A hollow lens is made of thin
Q31: At what distance in front of a
Q32: An ordinary magnifying glass in front of
Q37: A convex spherical surface with radius r
Q46: A point source is to be used
Q48: A concave refracting surface is one with
Q58: An erect object is located on the
Q73: A concave refracting surface of a medium