A low f-number
a. allows a smaller depth of field.
b. allows using a faster shutter speed.
c. causes less spherical aberration.
d. is not related to any of the above options.
a
You might also like to view...
A certain utility transformer is designed to step up the emf from 1 kV to 25 kV. If the primary has 1000 turns of wire, how many turns of wire does the secondary have?
A. 25,000 B. 4000 C. 2500 D. 40 E. 25 F. Some other result (specify). T. One needs more information to answer.
What is the solar wind?
A) a stream of charged particles flowing outward from the surface of the Sun B) the uppermost layer of the Sun, which lies just above the corona C) the strong wind that blows sunspots around on the surface of the Sun D) the wind that causes huge arcs of gas to rise above the Sun's surface
A typical neutron star is more massive than our Sun and about the size (radius) of
A) a small asteroid (10 km in diameter). B) Earth. C) the Moon. D) Jupiter.
A convex mirror has a focal length of ?20 cm. What is the object distance if the image distance is ?10 cm?
a. 10 cm b. 40 cm c. 60 cm d. 20 cm e. 30 cm