Sally places an object 6.0 cm from a thin, convex lens along its axis. The lens has a focal length of 12 cm. What are the respective values of the image distance and magnification?
a. 12 cm and -2.0
c. 3.0 cm and -0.50
b. –12 cm and 2.0
d. -6.0 cm and -1.0
B
You might also like to view...
Which of the following is a feature of quantum physics that is not valid according to Newtonian physics?
A) The second law of thermodynamics. B) The universe is made of tiny particles. C) The future is entirely determined by the present. D) The principle of conservation of energy. E) Nature is non-local, i.e., separated objects are sometimes instantaneously connected with each other.
A block of mass m sits at rest on a rough inclined ramp that makes an angle ? with the horizontal. What must be true about force of static friction f on the block?
A) f = mg sin ? B) f = mg cos ? C) f > mg D) f > mg cos ? E) f > mg sin ?
Which of the following applications is not suitable for a titanium alloy?
(a) Human body implants (b) Parts in saltwater, such as a ship propeller (c) high strength low weight parts (d) a gas turbine part at 700°C (1292°F)
What is the best way to determine a galaxy's redshift?
A) Find the galaxy's apparent distance, and look up the redshift based on Hubble's Law. B) Find the color of the galaxy, and estimate its distance based on how red the galaxy is. C) Measure the magnitude of the galaxy, estimate its distance, and calculate its redshift using Hubble's Law. D) Take a spectrum of the galaxy, and measure the difference in wavelength of spectral lines from the wavelengths of those same lines as measured in the laboratory.