phys 1002 final exam Question and
answers rated A+ 2025/2026
you are moving at a speed (2/3)c relative to Randy, and Randy shines a light toward you. At what speed
do you see the light passing you by? - correct answer ✔c
A 10 meter long spear is thrown at relativistic speeds through a 10 meter long pipe. When the spear
passes through the pipe what happens - correct answer ✔the spear could shrink and be covered by the
pipe, both could shrink equally, or the pipe could shrink so the spear extends from both ends
suppose you look at the huge clock on the Big Ben Tower at in reads 12 noon. If you move away from it
at the speed of light and view it with a telescope it would... - correct answer ✔be frozen at 12 noon
consider a spaceship traveling from the earth to mars at .5c. Who measures the proper length for the
distance from Earth to Mars? - correct answer ✔an observer on Earth
Which of the following is correct for the energy of a 620 nm beam of light? - correct answer ✔3.21 x 10
^-16 eV
Which one of the following phrases best describes the term work function? - correct answer ✔the
minimum energy required to remove electrons from a metal surface
which one of the following is demonstrated by the Compton effect? - correct answer ✔electrons have
wave properties
if Planck's constant were changed to 660 Js, what would be the minimum uncertainty in the position of a
120 kg football player running at a speed of 3.5 m/s. - correct answer ✔.25 m (delta p,delta y = h/2(pi))
, the symbol for a certain isotope of radium is 226 (top) 88 (bottom) Ra. How many nucleons are there in
the nucleus of the isotope? - correct answer ✔226
which of the following types of nuclear radiations is not affected by a magnetic field? - correct answer
✔gamma rays (no charge)
an oxygen -15 nucleus decays by emitting a B+ ray and one other particle. what is the other particle? -
correct answer ✔15(top), 7(bottom) N
an object is placed in front of a convex mirror at a distance larger than twice the magnitude of the focal
length of the mirror. the image will appear - correct answer ✔upright and reduced
if an object is placed between a convex lens and its focal point, the image formed is - correct answer
✔virtual and upright
the index of refraction of a certain glass is measured to be 1.5. what is the speed of light in that glass? -
correct answer ✔2.0 x 10 ^8 m/s
the closest object that a typical young person with normal vision can focus on clearly is closest to -
correct answer ✔25cm
If the lens in a person's eye is too highly curved, this person is suffering from - correct answer
✔nearsightedness
compound microscope - correct answer ✔the image of the objective serves as the object for the
eyepiece
for relaxed viewing with a microscope or a telescope, the eyepiece is adjusted to place the image at -
correct answer ✔infinity
answers rated A+ 2025/2026
you are moving at a speed (2/3)c relative to Randy, and Randy shines a light toward you. At what speed
do you see the light passing you by? - correct answer ✔c
A 10 meter long spear is thrown at relativistic speeds through a 10 meter long pipe. When the spear
passes through the pipe what happens - correct answer ✔the spear could shrink and be covered by the
pipe, both could shrink equally, or the pipe could shrink so the spear extends from both ends
suppose you look at the huge clock on the Big Ben Tower at in reads 12 noon. If you move away from it
at the speed of light and view it with a telescope it would... - correct answer ✔be frozen at 12 noon
consider a spaceship traveling from the earth to mars at .5c. Who measures the proper length for the
distance from Earth to Mars? - correct answer ✔an observer on Earth
Which of the following is correct for the energy of a 620 nm beam of light? - correct answer ✔3.21 x 10
^-16 eV
Which one of the following phrases best describes the term work function? - correct answer ✔the
minimum energy required to remove electrons from a metal surface
which one of the following is demonstrated by the Compton effect? - correct answer ✔electrons have
wave properties
if Planck's constant were changed to 660 Js, what would be the minimum uncertainty in the position of a
120 kg football player running at a speed of 3.5 m/s. - correct answer ✔.25 m (delta p,delta y = h/2(pi))
, the symbol for a certain isotope of radium is 226 (top) 88 (bottom) Ra. How many nucleons are there in
the nucleus of the isotope? - correct answer ✔226
which of the following types of nuclear radiations is not affected by a magnetic field? - correct answer
✔gamma rays (no charge)
an oxygen -15 nucleus decays by emitting a B+ ray and one other particle. what is the other particle? -
correct answer ✔15(top), 7(bottom) N
an object is placed in front of a convex mirror at a distance larger than twice the magnitude of the focal
length of the mirror. the image will appear - correct answer ✔upright and reduced
if an object is placed between a convex lens and its focal point, the image formed is - correct answer
✔virtual and upright
the index of refraction of a certain glass is measured to be 1.5. what is the speed of light in that glass? -
correct answer ✔2.0 x 10 ^8 m/s
the closest object that a typical young person with normal vision can focus on clearly is closest to -
correct answer ✔25cm
If the lens in a person's eye is too highly curved, this person is suffering from - correct answer
✔nearsightedness
compound microscope - correct answer ✔the image of the objective serves as the object for the
eyepiece
for relaxed viewing with a microscope or a telescope, the eyepiece is adjusted to place the image at -
correct answer ✔infinity
