![ieative Problems (SHOW YOUR WORK FOR PARTIAL CREDITS) 1) I 12pts I suppose an object is placed 60㎝ in front of a lems that ha, a fealength of 40 cm. Where is the image located? What are the magnification and the character of the image? L5x10rw.The - l-2) [12pts] A high-energy pulsed laser omits a 1.0 ns long pulse of average power beam is nearly a cylinder 2.2x10 m in radius. A) Determine the energy delivered in each pulse B) the rms value of the electric field Il-3)1Spts] A radio station broadcasts at 80 MHz. How long does it take for this radio signal to travel a distance of 20 - 100 m through space? (c 3.0 x 108 m/s)](https://i.imgur.com/LGBprLC.jpeg)
Answers
1)
Using thin lens formula:
Object distance 
, focal length of lens 
Image distance from the lens is
Magnification 
Since 
is positive , image is real and 
is negative , image is inverted.
2)
i) Energy delivered in each pulse 
ii) Rms electric field 
3)
Time taken for the radio signal to travel a distance of 
is
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.
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