a.A far-sighted person can see his iPhone clearly only if he holds it 40 cm away a farther from his eyes. What should be the prescription of his contact lenses, if he wants to clearly see his phone at a distance of 25 cm?
Group of answer choices
+1.5 D
-1.5 D
+6.5 D
-6.5 D
-2.4 D
b.An object is placed at 50 cm from a convex spherical mirror with a radius of curvature of 200 cm. What are the properties of the image?
Group of answer choices
Virtual, m = 0.5
Real, m = 0.67
Virtual, m = 0.67
Real, m = -1.0
Real, m = 1.0
a.A far-sighted person can see his iPhone clearly only if he holds it 40 cm away...
A far-sighted person can see his iPhone clearly only if he holds it 40 cm away a farther from his eyes. What should be the prescription of his contact lenses, if he wants to clearly see his phone at a distance of 25 cm? Group of answer choices +1.5 D -1.5 D +6.5 D -6.5 D -2.4 D
A far-sighted person can see his iPhone clearly only if he holds it 40 cm away a farther from his eyes. What should be the prescription of his contact lenses, if he wants to clearly see his phone at a distance of 25 cm? +1.5 D -1.5 D +6.5 D -6.5 D -2.4 D
A far-sighted person can see his iPhone clearly only if he holds it 40 cm away a farther from his eyes. What should be the prescription of his contact lenses, if he wants to clearly see his phone at a distance of 25 cm? +1.5 D -1.5D +6.5D -6.5D -24D
A far-sighted person can see his iPhone clearly only if he holds it 40 cm away a farther from his eyes. What should be the prescription of his contact lenses, if he wants to clearly see his phone at a distance of 25 cm? +1.5 D 0 -1.5 D 0 +6.5D 0 -6.5D 0 -2.4D
Question 13 5 pts A far-sighted person can see his iPhone clearly only if he holds it 40 cm away a farther from his eyes. What should be the prescription of his contact lenses, if he wants to clearly see his phone at a distance of 25 cm? O +1.5 D 0 -1.5 D 0 +6.5D O -6.5 D O -2.4D
Please answer all three questions The figure shows a stationary conducting loop adjacent to a vertical current-carrying wire. For which of the following conditions will a counter-clockwise induced current circulate in the stationary loop? Current-carrying wire Stationary conducting loop Counter- clockwise induced current The current in the vertical wire flows downward and its value is decreasing. The current in the vertical wire flows downward and its value is constant. The current in the vertical wire flows downward and its value...
Question 12 5 pts The figure shows a stationary conducting loop adjacent to a horizontal current-carrying wire. For which of the following conditions will a counter- clockwise induced current circulate in the stationary loop? Stationary conducting loop Counter- clockwise induced current - Current-carrying wire The current in the horizontal wire flows to the right and its value is increasing The current in the horizontal wire flows to the right and its value is constant. The current in the horizontal wire...
Upon visiting the optometrist Benjamin finds out that he can see objects clearly only if they are less than 5.6 m from his eyes. For his prescription, what focal length glasses worn 2.2 cm from his eyes will allow Benjamin to see far objects clearly? m
8. Your nearsighted brother has a far point of 4 m and he wants to see an object 15 m away clearly Assume he will wear his glasses 2 cm in front of his eyes. What is the focal distance (in meters) of the glasses he needs? Hint: Draw a diagram of your brother, the glasses, the object and the image. Use the diagram to figure out whether the glasses have to be diverging or converging. 9. Consider question 8....