Lens-Maker Formula: A plano-convex lens is to have a focal length of magnitude 40 cm, and it is made of glass of index of refraction 1.65. What radius of curvature is required?
A. 13 cm
B. 26 cm
C. 32 cm
D. 36 cm
Answer: B
You might also like to view...
An important factor in producing and controlling a fission chain reaction is the fact that _________ neutrons are much better a causing fission in uranium-235
Fill in the blank(s) with correct word
What is the quark composition of the ?++? It has no strangeness, no charm, and no top-ness or bottom-ness. Its spin is 3/2
Building codes usually limit the current carried by a No. 14 copper wire to 15 A. Many household circuits are wired with this size wire. What is the drift velocity of the electrons in this case?
The diameter of this wire is 1.6 mm. Assume one conduction electron per atom in copper. The atomic weight of copper is 63.3 g/mol and its density is 8900 kg/m3. Avogadro's number is 6.022 × 1023 molecules/mol and e = 1.60 × 10-19 C. A) 5.51 × 10-4 m/s B) 4.56 × 10-4 m/s C) 1.65 × 10-3 m/s D) 4.44 × 10-2 m/s E) 4.89 × 10-5 m/s
The separation of red and blue light in single-lens telescopes is called ________ aberration
Fill in the blank(s) with correct word