Decreasing the aperture diameter of a camera lens by a factor of three will change the f-number by what factor?
a. 3
c. 1/9
b. 9
d. 1/3
A
Physics & Space Science
You might also like to view...
What is the typical size of a comet's nucleus?
A) 10 km B) 1 meter C) 100 km D) 1000 km E) Sizes are unknown because the nucleus is obscured by the coma.
Physics & Space Science
Which of these is a fictitious force?
a. inertial force b. gravitational force c. electric force d. magnetic force e. centripetal force
Physics & Space Science
X-ray production occurs in which process?
a. photons hitting a metal, emitting electrons b. electrons hitting a metal, emitting photons c. photons hitting a metal, emitting x-rays d. electrons hitting a metal and scattering elastically
Physics & Space Science
Which type of quantity is characterized by both magnitude and direction?
a. scalar b. vector c. trigonometric d. algebraic variable
Physics & Space Science