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PHYS 1260 EXAM 3 NEWEST VERIFIED VERSION 2026 WITH
COMPLETE 100 QUESTIONS AND SOLUTION 100%
VERIFIED ANSWERS A+ GRADED FREE||NEWEST EXAM!!!
Light travels slower in a lens having a
A) high index of refraction.
B) low index of refraction.
C) [same in each] - ANSWER-A) high index of refraction.
Image-forming rays parallel to the optical axis (paraxial rays) pass
through the
A ) object point.
B) focal point.
C) none of these
D) image point. - ANSWER-B) focal point.
Evaluate this statement: The image formed by a lens's first
surface serves as an object for its second surface.
A) False
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B) True - ANSWER-B) True
What we call a positive lens is actually a
A) concave lens.
B) convex lens.
C) diverging lens.
D) none of these - ANSWER-B) convex lens.
Optical power is a measure of the ability of a lens to
A) disperse light.
B) diffuse light.
C) refract light.
D) reflect light. - ANSWER-C) refract light.
A lens made from the wrong kind of glass will produce a
A) spherical aberration.
B) optical aberration.
C) chromatic aberration.
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D) comatic aberration. - ANSWER-C) chromatic aberration.
Fermat's principle applies to
A) reflection.
B) refraction.
C) [both of these]
D) [neither of these] - ANSWER-C) [both of these]
The inversion of your image in a plane mirror is actually an
inversion of
A) left-right.
B) front-back.
C) [both of these] - ANSWER-C) [both of these]
Refraction occurs when light passing from one medium to another
A) changes frequency.
B) changes speed.
C) losesenergy.
D) reflects inward. - ANSWER-B) changes speed.
PHYS 1260 EXAM 3 NEWEST VERIFIED VERSION 2026 WITH
COMPLETE 100 QUESTIONS AND SOLUTION 100%
VERIFIED ANSWERS A+ GRADED FREE||NEWEST EXAM!!!
Light travels slower in a lens having a
A) high index of refraction.
B) low index of refraction.
C) [same in each] - ANSWER-A) high index of refraction.
Image-forming rays parallel to the optical axis (paraxial rays) pass
through the
A ) object point.
B) focal point.
C) none of these
D) image point. - ANSWER-B) focal point.
Evaluate this statement: The image formed by a lens's first
surface serves as an object for its second surface.
A) False
,2|Page
B) True - ANSWER-B) True
What we call a positive lens is actually a
A) concave lens.
B) convex lens.
C) diverging lens.
D) none of these - ANSWER-B) convex lens.
Optical power is a measure of the ability of a lens to
A) disperse light.
B) diffuse light.
C) refract light.
D) reflect light. - ANSWER-C) refract light.
A lens made from the wrong kind of glass will produce a
A) spherical aberration.
B) optical aberration.
C) chromatic aberration.
, 3|Page
D) comatic aberration. - ANSWER-C) chromatic aberration.
Fermat's principle applies to
A) reflection.
B) refraction.
C) [both of these]
D) [neither of these] - ANSWER-C) [both of these]
The inversion of your image in a plane mirror is actually an
inversion of
A) left-right.
B) front-back.
C) [both of these] - ANSWER-C) [both of these]
Refraction occurs when light passing from one medium to another
A) changes frequency.
B) changes speed.
C) losesenergy.
D) reflects inward. - ANSWER-B) changes speed.
