Optical Instruments MCQs

A. Diverging (or concave) lens

B. Converging (or convex) lens

C. Plano concave lens

D. Plano-convex lens

A. Center of curvature

B. Focus

C. Optical centre

D. Aperture

A. Focal length

B. Principal axis

C. Aperture

D. Radius of curvature

A. Deviated

B. Bent away from the normal

C. Bent towards the normal

D. Polarized

A. Meter

B. Watt

C. Dioptre

D. Horsepower

A. 10 dioptre

B. 10 dioptre

C. 1 / 10 dioptre

D. 1 / 10 dioptre

A. Real

B. Virtual

C. Positive

D. Negative

A. 2 f

B. 2.5 f

C. 3f

D. 4f

A. Real and erect

B. Virtual and erect

C. Real and inverted

D. Virtual

A. Between principal focus and centre of curvature

B. Beyond 2 f

C. At the principal focus

D. Between the principal focus and an optical center