Question: Answer the following question given this paragraph: 25.7 Image Formation by Mirrors 53. What is the focal length of a makeup mirror that has a power of 1.50 D? 54. Some telephoto cameras use a mirror rather than a lens. What radius of curvature mirror is needed to replace a 800 mm focal length telephoto lens? 55. (a) Calculate the focal length of the mirror formed by the shiny back of a spoon that has a 3.00 cm radius of curvature. (b) What is its power in diopters? 56. Find the magnification of the heater element in Example 25.9. Note that its large magnitude helps spread out the reflected energy. What is the focal length of a makeup mirror that produces a magnification of 1.50 when a person's face is 12.0 cm away? Explicitly show how you follow the steps in the Problem-Solving Strategy for Mirrors. A shopper standing 3.00 m from a convex security mirror sees his image with a magnification of 0.250. (a) Where is his image? (b) What is the focal length of the mirror? (c) What is its radius of curvature? Explicitly show how you follow the steps in the Problem-Solving Strategy for Mirrors. An object 1.50 cm high is held 3.00 cm from a person's cornea, and its reflected image is measured to be 0.167 cm high. (a) What is the magnification? (b) Where is the image? (c) Find the radius of curvature of the convex mirror formed by the cornea. (Note that this technique is used by optometrists to measure the curvature of the cornea for contact lens fitting. The instrument used is called a keratometer, or curve measurer. ) 60. Ray tracing for a flat mirror shows that the image is located a distance behind the mirror equal to the distance of the object from the mirror. This is stated d i = d o , since this is a negative image distance (it is a virtual image). (a) What is the focal length of a flat mirror? (b) What is its power?. Q: What does a keratometer measure in the cornea? A:
OPTIONS:
- diameter
- Lenght
- Width
- curve
Answer: curve

input with options: Answer the following question given this paragraph: Primates include monkeys, apes and humans. These mammals are characterized by detailed development of the hands and feet, a shortened snout, and a large brain. Q: What type of mammals are characterized by detailed development of the hands and feet, a shortened snout, and a large brain? A:
OPTIONS:
- apes
- amphibians
- mammles
- primates
output: primates

Q: Answer the following question given this paragraph: Each step of the food chain in the energy pyramid is called a trophic level . Plants or other photosynthetic organisms ( autotrophs ) are found on the first trophic level, at the bottom of the pyramid. The next level will be the herbivores, and then the carnivores that eat the herbivores. The energy pyramid ( Figure below ) shows four levels of a food chain, from producers to carnivores. Because of the high rate of energy loss in food chains, there are usually only 4 or 5 trophic levels in the food chain or energy pyramid. There just is not enough energy to support any additional trophic levels. Heterotrophs are found in all levels of an energy pyramid other than the first level. Q: What organism is at the top of the energy pyramid? A:

OPTIONS:
- primate
- herbivore
- insects
- carnivore

A: carnivore

input: OPTIONS:
- hydrocarbons
- air
- gases
- water Now, answer this question: Answer the following question given this paragraph: Water has high surface tension because of extensive hydrogen bonding. Q: What has high surface tension because of extensive hydrogen bonding? A:
A:
output: water

Answer the following question given this paragraph: Most chemical reactions in organisms take place in an environment that is mostly water. Q: The environment where most chemical reactions in organisms takes place consists mostly of what? A:

OPTIONS:
- air
- sodium
- helium
- water

Answer: water

Q: Answer the following question given this paragraph: Insight learning is learning from past experiences and reasoning. It usually involves coming up with new ways to solve problems. Insight learning generally happens quickly. An animal has a sudden flash of insight. Insight learning requires relatively great intelligence. Human beings use insight learning more than any other species. They have used their intelligence to solve problems ranging from inventing the wheel to flying rockets into space. Q: What type of learning is done from past experiences and reasoning? A:

OPTIONS:
- consequence learning
- transformation learning
- rational learning
- insight learning

A:
insight learning