How do humans use their eyes to measure relative distance by parallax?
a. By continuously focusing our eyes on distant objects we can determine distance.
b. Since our eyes are separated the brain interprets the relative look angles of these eyes in terms of distance to the object viewed.
c. Our eyes can measure the time it takes light to travel from an object and from this we get distance.
d. By moving our heads from side to side our brain compares look angles from each of these positions to obtain the distance to the object viewed.
B
You might also like to view...
An oven has inside walls with emissivity of 0.6. When the oven is at 200ºC the door is opened and the oven is turned off, as shown in the figure. Determine the net radiation from the oven to the surrounding room. Assume that the room acts as a black body at 20ºC.
Rain drops that freeze prior to striking the warm ground is a(n) ______________ storm
a. hail b. rain c. ice d. snow
At what point is the Moon closest to Earth?
a. apogee b. perigee c. umbra d. penumbra e. prominence
Arthur and Betty start walking toward each other when they are 100 m apart. Arthur has a speed of and Betty has a speed of
Their dog, Spot, starts by Arthur's side at the same time and runs back and forth between them at 5.0 m/s. By the time Arthur and Betty meet, what distance has Spot run? What will be an ideal response?