130) A converging lens has a focal length of 10.0 cm. Locate the object if a real image islocated at a distance from the lens of (a) 20.0 cm and (b) 50.0 cm. What If? Redo thecalculations if the images are virtual and located at a distance from the lens of (c) 20.0cm and (d) 50.0 cm.131) A diverging lens has a focal length of magnitude 20.0 cm. (a) Locate the image forobject distances of (i) 40.0 cm, (ii) 20.0 cm, and (ii) 10.0 cm. For each case, statewhether the image is (b) real or virtual and (c) upright or inverted. (d) For each case,find the magnification.132) (a) Three resistors are connected in parallel as shown in Figure 6. A potential differenceof 18.0 V is maintained between points a and b. (1 ) Find the current in each resistor. (2)Calculate the power delivered to each resistor and the total power delivered to thecombination of resistors.18.0 VT3.00 0 6.00 0 9.00 aFigure 6(b) Find the currents I, l2 , and la in the circuit shown in Figure 7 following the steps belows:1) Consider the arbitrary directions of the currents as labeled in Figure 2.2) Apply Kirchhoff's junction rule to junction c;3) Apply Kirchhoff's loop rule to loops abcda and befcb and travers these loops clockwise.14.0 V1.0210.0v 6.00142.0 0Figure 7133) For the circuit shown in Figure 8, we wish to find the currents I1, 12, and 13. Use Kirchhoff'srules to obtain equations for (a) the upper loop, (b) the lower loop, and (c) the junction on theleft side. In each case, suppress units for clarity and simplify, combining the terms. (d) Solve thejunction equation for l3. (e) Using the equation found in part (d), eliminate la from the equationfound in part (b). () Solve the equations found in parts (a) and (e) simultaneously for the twounknowns I, and 12. (g) Substitute the answers found in part (A into the junction equationfound in part (d), solving for l3. (h) What is the significance of the negative answer for l2?18.0 V5.00 08.00 01100 12.0 V11.007.00 15.00 0 560VFigure 8134) In the circuit of Figure 9, determine (a) the current in each resistor and (b) the potentialdifference across the 200-V resistor.40.0 V360 V.80.0 V200 nEs0.0 n20.0n70.0 nFigure 9

130) A converging lens has a focal length of 10.0 cm. Locate the object if a real image is located at a distance from the lens of (a) 20.0 cm and (b) 50.0 cm. What If? Redo the calculations if the images are virtual and located at a distance from the lens of (c) 20.0 and (0) 50.0 cm.

130) A converging lens has a focal length of 10.0 cm. Locate the object if a real image is located at a distance from the lens of (a) 20.0 cm and (b) 50.0 cm. What If? Redo the calculations if the images are virtual and located at a distance from the lens of (c) 20.0 and (0) 50.0 cm.

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter36: Image Formation

Section: Chapter Questions

Problem 36.46P: A diverging lens has a focal length of magnitude 20.0 cm. (a) Locate the image for object distances...

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Question

130) A converging lens has a focal length of 10.0 cm. Locate the object if a real image is
located at a distance from the lens of (a) 20.0 cm and (b) 50.0 cm. What If? Redo the
calculations if the images are virtual and located at a distance from the lens of (c) 20.0
cm and (d) 50.0 cm.
131) A diverging lens has a focal length of magnitude 20.0 cm. (a) Locate the image for
object distances of (i) 40.0 cm, (ii) 20.0 cm, and (ii) 10.0 cm. For each case, state
whether the image is (b) real or virtual and (c) upright or inverted. (d) For each case,
find the magnification.
132) (a) Three resistors are connected in parallel as shown in Figure 6. A potential difference
of 18.0 V is maintained between points a and b. (1 ) Find the current in each resistor. (2)
Calculate the power delivered to each resistor and the total power delivered to the
combination of resistors.
18.0 VT
3.00 0 6.00 0 9.00 a
Figure 6
(b) Find the currents I, l2 , and la in the circuit shown in Figure 7 following the steps belows:
1) Consider the arbitrary directions of the currents as labeled in Figure 2.
2) Apply Kirchhoff's junction rule to junction c;
3) Apply Kirchhoff's loop rule to loops abcda and befcb and travers these loops clockwise.
14.0 V
1.02
10.0v 6.00
14
2.0 0
Figure 7
133) For the circuit shown in Figure 8, we wish to find the currents I1, 12, and 13. Use Kirchhoff's
rules to obtain equations for (a) the upper loop, (b) the lower loop, and (c) the junction on the
left side. In each case, suppress units for clarity and simplify, combining the terms. (d) Solve the
junction equation for l3. (e) Using the equation found in part (d), eliminate la from the equation
found in part (b). () Solve the equations found in parts (a) and (e) simultaneously for the two
unknowns I, and 12. (g) Substitute the answers found in part (A into the junction equation
found in part (d), solving for l3. (h) What is the significance of the negative answer for l2?
18.0 V
5.00 0
8.00 0
1100 12.0 V
11.00
7.00 1
5.00 0 560V
Figure 8
134) In the circuit of Figure 9, determine (a) the current in each resistor and (b) the potential
difference across the 200-V resistor.
40.0 V
360 V.
80.0 V
200 nE
s0.0 n
20.0n
70.0 n
Figure 9

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A converging lens has a focal length of 10.0 cm. Locate the object if a real image is located at a distance from the lens of (a) 20.0 cm and (b) 50.0 cm. What If? Redo the calculations if the images are virtual and located at a distance from the lens of (c) 20.0 cm and (d) 50.0 cm.
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