Consider a lens shown schematically in the picture below and an object of height h, placed distance d 1 |m| < 1 Inverted Upright Real

Suppose a certain person’s visual acuity is such that he can see objects clearly that form an image 4.00mhigh on his retina. What is the maximum distance at which he can read the 75.0-cm-high letters on the side of an airplane?

Why won’t two small sodium lamps, held close together, produce an interference pattern on a distant screen? What if the sodium lamps were replaced by two laser pointers held close together?

Two stars that are 109km apart are viewed by a telescope and found to be separated by an angle of 105 radians. If the eyepiece of the telescope has a focal length of 1.5 cm and the objective has a focal length of 3 meters, how far away are the stars from the observer?

A boy floating on a pond watches a fish swim away from him as in the figure below. If the fish is 1.13 m beneath the surface, for what maximum distance d (in m) will he be able to see the fish? Neglect the height of the boy's eyes above the water.   answer in meters please

A boy floating on a pond watches a fish swim away from him as in the figure below. If the fish is 1.27 m beneath the surface, for what maximum distance d (in m) will he be able to see the fish? Neglect the height of the boy's eyes above the water.

Show that for objects very far away (assume infinity),the magnification of any camera lens is proportional to itsfocal length.

A boy floating on a pond watches a fish swim away from him as in the figure below. If the fish is 2.51 m beneath the surface, for what maximum distance d (in m) will he be able to see the fish? Neglect the height of the boy's eyes above the water. HINT 2.51 m  m

A coin is lying at the bottom of a pool of water that is 5.5 feetdeep. Viewed from directly above the coin, how far below the surface of the water does the coin appear to be? (The coin is assumedto be small in diameter; therefore, we can use the small-angleapproximations sin u ≅ tan u ≅ u.)

The focal length of a diverging lens is negative.  If f=-13cm for a particular diverging lens, where will the image be formed of an object located 34 cm to the left of the lens on the optical axis?