**Understanding Real Image Formation by a Lens**The following exercise demonstrates how a converging lens produces a real image of an object, specifically a candle flame. The goal is to determine the focal length of the lens used in the setup.### Figure 1 ExplanationThe given diagram features a converging lens creating a real image of a candle flame. The positions of the candle, lens, and the formed image are as follows:1. **Object Position**: The candle flame is placed at a distance of 12 cm from the lens.2. **Lens Position**: The central axis of the lens is marked clearly.3. **Image Position**: The image is formed at a distance of 36 cm on the opposite side of the lens from the candle.![Lens Diagram](Figure 1) _Illustration: A candle placed 12 cm left of a converging lens, forming an inverted image 36 cm to the right._### Part A__Question:__ What is the focal length of the lens?Selections:- [ ] 9.0 cm- [ ] 12 cm- [ ] 24 cm- [ ] 36 cm- [ ] 48 cm**Procedure for Answering:**Use the lens formula:\[ \frac{1}{f} = \frac{1}{d_o} + \frac{1}{d_i} \]Where:- \( f \) is the focal length,- \( d_o \) is the object distance (12 cm),- \( d_i \) is the image distance (36 cm, real image hence positive).Calculate the answer, and select the correct option.**Provide Feedback**Use the above information to determine the focal length and enhance your understanding of how lenses form real images.**Answer Submission**Select the appropriate option from the given choices and click the **Submit** button.Request Answer | Submit

Given: object distance, p=12 cm Image distance, q=36 cm

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The lens in the figure is used to produce a real image of a candle flame. (Figure 1) Part A What is the focal length of the lens? 9.0 cm 12 cm 24 cm 36 cm 48 cm Submit Request Answer Figure 1 of 1 Provide Feedback 12 cm 36 cm O O O O O