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Two converging lenses with focal lengths of 35 cm and 54 cm are combined to make a single lens. Part A What is the focal length of the combination? Express your answer to two significant figures and include the appropriate units. HA ? frotal = Value Units

Two converging lenses with focal lengths of 35 cm and 54 cm are combined to make a single lens. Part A What is the focal length of the combination? Express your answer to two significant figures and include the appropriate units. HA ? frotal = Value Units

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### Combining Lenses to Determine the Focal Length Two converging lenses with focal lengths of 35 cm and 54 cm are combined to create a single lens. #### Problem Statement - Part A **Question:** What is the focal length of the combination? **Instructions:** Express your answer to two significant figures and include the appropriate units. <div style="display: flex; align-items: center;"> <div style="margin-right: 15px;"> \( f_{\text{total}} = \) </div> <input type="text" size="10" placeholder="Value"> <input type="text" size="10" placeholder="Units"> </div> <button>Submit</button> <button>Request Answer</button> ### Explanation of Diagrams and Interface Components - **Text Input Fields:** Use these fields to enter the calculated value of the combined focal length and its appropriate unit. - **Submit Button:** Click to submit your response. - **Request Answer Button:** Click if you need assistance or cannot determine the answer. Use the lens formula for combined focal length: \[ \frac{1}{f_{\text{total}}} = \frac{1}{f_1} + \frac{1}{f_2} \] Given: - \( f_1 = 35 \) cm - \( f_2 = 54 \) cm
Transcribed Image Text:### Combining Lenses to Determine the Focal Length Two converging lenses with focal lengths of 35 cm and 54 cm are combined to create a single lens. #### Problem Statement - Part A **Question:** What is the focal length of the combination? **Instructions:** Express your answer to two significant figures and include the appropriate units. <div style="display: flex; align-items: center;"> <div style="margin-right: 15px;"> \( f_{\text{total}} = \) </div> <input type="text" size="10" placeholder="Value"> <input type="text" size="10" placeholder="Units"> </div> <button>Submit</button> <button>Request Answer</button> ### Explanation of Diagrams and Interface Components - **Text Input Fields:** Use these fields to enter the calculated value of the combined focal length and its appropriate unit. - **Submit Button:** Click to submit your response. - **Request Answer Button:** Click if you need assistance or cannot determine the answer. Use the lens formula for combined focal length: \[ \frac{1}{f_{\text{total}}} = \frac{1}{f_1} + \frac{1}{f_2} \] Given: - \( f_1 = 35 \) cm - \( f_2 = 54 \) cm
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