PHYS 1260 LATEST 2026 EXAM QUESTIONS AND
ANSWERS GRADED A+
✔✔equivalent resistance of series - ✔✔Req = R1 + R2 + R3
✔✔equivalent resistance of parallel - ✔✔1/Req = 1/R1 + 1/R2 + 1/R3
✔✔magnetic force - ✔✔F=|q|vBsin(theta)
✔✔motion of a point charge in a magnetic field - ✔✔-magnetic filed takes note of
centripetal force
-magnetic fields do NO work
✔✔no charge, no deflection - ✔✔it goes straight
✔✔e-field begin - ✔✔at positive charges and end at negative charges
✔✔b-field lines ALWAYS - ✔✔form closed paths
✔✔a convention that helps us make sense of the phenomenon that electromagnetic
induction attempts to undo any change in the magnetic flux - ✔✔lenz's law
✔✔time varying current---time varying b-field---induced emf - ✔✔self-induction
✔✔constant of proportionality - ✔✔inductance
✔✔inductance combined with faraday's law - ✔✔back emf
✔✔most of the waves in the electromagnetic spectrum are - ✔✔invisible
✔✔electromagnetic waves consist of - ✔✔oscillating electric and magnetic fields
✔✔which of the following cannot travel in a vacuum (free spaces)? - ✔✔sound waves
✔✔the fact that you can see stars in the nighttime sky is evidence that - ✔✔our
atmosphere is transparent to visible light and light can travel in a vacuum
✔✔light is reflected when - ✔✔incident light is returned into the medium from which it
came
✔✔when sunlight illuminates a page from you book it - ✔✔reflects most of it and
absorbs at the text lettering
, ✔✔light travels from one place to another along a path of least - ✔✔time
✔✔Fermat's principle applies to - ✔✔reflection and refraction
✔✔refraction - ✔✔travel time is minimized
✔✔reflection - ✔✔travel time and distance are minimized
✔✔the inversion of your image in a plane mirror is actually an inversion of - ✔✔left-right
and front-back
✔✔refraction occurs when light passing from one medium to another - ✔✔changes
speed
✔✔d= - ✔✔vt
✔✔something slows down, path length (air to glass) - ✔✔decreases
✔✔high to low, something speeds up, path length (glass to air) - ✔✔increases
✔✔When a light ray in air enters water at 15° from the normal, it - ✔✔always bends
toward the normal
✔✔which are consequences of different speeds of light in different media? -
✔✔mirages, rainbows, and brilliant colors of diamonds
✔✔the type of lens that spreads parallel light is a - ✔✔diverging lens
✔✔the type of lens that brings parallel light rays together is a - ✔✔converging lens
✔✔an upright object placed beyond the focal point of a concave lens will produce an
image that is - ✔✔virtual and upright
✔✔an upright object placed within the focal point of a concave lens will produce an
image that is - ✔✔virtual and upright
✔✔a thicker concave lens will have a focal length that is - ✔✔longer
✔✔a real object placed far away relative to the focal length of a concave lens (s>>f) will
produce an image located at the - ✔✔focal point
✔✔a concave lens has a negative focal length, therefore causing image forming rays to
- ✔✔diverge
ANSWERS GRADED A+
✔✔equivalent resistance of series - ✔✔Req = R1 + R2 + R3
✔✔equivalent resistance of parallel - ✔✔1/Req = 1/R1 + 1/R2 + 1/R3
✔✔magnetic force - ✔✔F=|q|vBsin(theta)
✔✔motion of a point charge in a magnetic field - ✔✔-magnetic filed takes note of
centripetal force
-magnetic fields do NO work
✔✔no charge, no deflection - ✔✔it goes straight
✔✔e-field begin - ✔✔at positive charges and end at negative charges
✔✔b-field lines ALWAYS - ✔✔form closed paths
✔✔a convention that helps us make sense of the phenomenon that electromagnetic
induction attempts to undo any change in the magnetic flux - ✔✔lenz's law
✔✔time varying current---time varying b-field---induced emf - ✔✔self-induction
✔✔constant of proportionality - ✔✔inductance
✔✔inductance combined with faraday's law - ✔✔back emf
✔✔most of the waves in the electromagnetic spectrum are - ✔✔invisible
✔✔electromagnetic waves consist of - ✔✔oscillating electric and magnetic fields
✔✔which of the following cannot travel in a vacuum (free spaces)? - ✔✔sound waves
✔✔the fact that you can see stars in the nighttime sky is evidence that - ✔✔our
atmosphere is transparent to visible light and light can travel in a vacuum
✔✔light is reflected when - ✔✔incident light is returned into the medium from which it
came
✔✔when sunlight illuminates a page from you book it - ✔✔reflects most of it and
absorbs at the text lettering
, ✔✔light travels from one place to another along a path of least - ✔✔time
✔✔Fermat's principle applies to - ✔✔reflection and refraction
✔✔refraction - ✔✔travel time is minimized
✔✔reflection - ✔✔travel time and distance are minimized
✔✔the inversion of your image in a plane mirror is actually an inversion of - ✔✔left-right
and front-back
✔✔refraction occurs when light passing from one medium to another - ✔✔changes
speed
✔✔d= - ✔✔vt
✔✔something slows down, path length (air to glass) - ✔✔decreases
✔✔high to low, something speeds up, path length (glass to air) - ✔✔increases
✔✔When a light ray in air enters water at 15° from the normal, it - ✔✔always bends
toward the normal
✔✔which are consequences of different speeds of light in different media? -
✔✔mirages, rainbows, and brilliant colors of diamonds
✔✔the type of lens that spreads parallel light is a - ✔✔diverging lens
✔✔the type of lens that brings parallel light rays together is a - ✔✔converging lens
✔✔an upright object placed beyond the focal point of a concave lens will produce an
image that is - ✔✔virtual and upright
✔✔an upright object placed within the focal point of a concave lens will produce an
image that is - ✔✔virtual and upright
✔✔a thicker concave lens will have a focal length that is - ✔✔longer
✔✔a real object placed far away relative to the focal length of a concave lens (s>>f) will
produce an image located at the - ✔✔focal point
✔✔a concave lens has a negative focal length, therefore causing image forming rays to
- ✔✔diverge
