MCQ Series 61: optometry and Ophthalmogy MCQ test series
1. Image magnification is direct ophthalmoscopy
3. Total dioptric power of the eye
6.Wavelength of visible light is
9. If the object is at infinity in front of a convex lens an image is formed at the
1. Image magnification is direct ophthalmoscopy
A.2 times
B.5 times
C.10 times
D. 15 times
2. A concave lens always produces an image of the object.
A. Real, inverted and diminished
B.Virtual, erect and diminished
C.Real, inverted and magnified
D.Virtual, erect and magnified
3. Total dioptric power of the eye
A.+ 15 dioptre
B.+ 43 dioptre
C.+ 58 dioptre
D.+ 70 dioptre
4. Aniseikonia is due to
A.Spherical aberration
B. Chromatic aberration
C.Unequal size of ocular images
D.Unequal image clarity
5. The bending of light rays around the aperture of a pinhole is due to
A.Refraction
B. Dispersion
C.Diffraction
D.Reflection
6.Wavelength of visible light is
A.397-723 nm
B. 350-750 nm
C.293-710 nm
D.305-795 nm
7. Image formed by a convex mirror irrespective of the place of object is
A.Virtual, erect and diminished
B.Virtual, erect and magnified
C.Real, inverted and diminished
D. Real, inverted and magnified
8. Following are used for nomenclature of prisms
A.Centrad
B.Prism dioptre
C.Angle of deviation
D.All of the above
9. If the object is at infinity in front of a convex lens an image is formed at the
A.Infinity
B. Centre of curvature
C.Focal point
D. Between center of curvature and focal point
10. In a Sturm's Conoid with a vertical meridian more curved than the horizontal meridian the image formed at point B is….
A.Oval ellipse
B. Horizontal line
C. Vertical line
D. Circle
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