An image is formed using a convex lens, the image being 15 cm past the lens. A second lens is placed 25 cm past the first lens and another image is formed, this time 10 cm past the second lens. Which of the following statements is always true?
a. Both of the lenses have positive focal lengths.
b. The first lens is diverging, and the second is converging.
c. The first lens is converging, and the second is diverging.
d. None of the above statements is true.
a
You might also like to view...
A plate sliding into a(n) ____________________ can trigger volcanism
Fill in the blank(s) with correct word
What two forces are balanced in what we call gravitational equilibrium?
A) the electromagnetic force and gravity B) outward pressure and the strong force C) outward pressure and inward gravity D) the strong force and gravity E) the strong force and kinetic energy
For an orbital quantum number of 2, the magnetic quantum number can take on what allowed values?
What will be an ideal response?
If the speed of a motor scooter doubles, which of the following also doubles?
A) momentum B) kinetic energy C) acceleration D) all of the above