A. f2 + f1
B. f2 – f1
C. f1f2/f2+f1
D. f1f2/f1-f2
A. chromatic aberration
B. spherical aberration
C. both spherical and chromatic
D. distortion
A. 15 cm
B. 25 cm
C. 30 cm
D. 40 cm
A. increase with increase in focal length
B. increase with decrease in focal length
C. no effect with decrease or increase with focal length
D. list distance of distinct vision
A. real and erect
B. virtual and erect
C. real and inverted
D. virtual
A. real
B. virtual
C. positive
D. negative
A. meter
B. watt
C. diopter
D. horsepower
A. focal length
B. principal axis
C. aperture
D. radius of curvature
A. diverging (or concave) lens
B. converging (or convex) lens
C. plano concave lens
D. plano convex lens