The setup contains a lens with an unknown focal length. Place the object for the

Question

The setup contains a lens with an unknown focal length. Place the object for the lent at 2 different distances from the lens and find the image distance for each object distance. Use this data to find the local length of the lens and the uncertainty in the local length as determined by your experiment. Focal length of lens = Use the power supply, the breadboard, the 100 Ohm resistor, and the light bulb to set up the series circuit shown below. Set the DC power supply to 10V and use the multimeter to measure the voltage drop across the lightbulb. Voltage drop across the light bulb = Use the power supply, the breadboard, the 100 Ohm resistor, and the light bulb to set up the parallel circuit shown below: Set the DC power supply to 10V and use the multimeter to measure the voltage drop across the lightbulb. Voltage drop across the light bulb =

Explanation / Answer

Use the formula

I/f = 1/u - 1/v

to find the focal length.

For Part B the first answer will be 0 V

and the second answer will be 10 V

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