Question
In an experiment to measure the speed of light by Fizeau's apparatus, following data are used: Distance between the mirrors $=12 \cdot 0 \mathrm{~km}$, Number of teeth in the wheel $=180$. Find the minimum angular speed of the wheel for which the image is not seen.
Step 1
We know that 1 kilometer is equal to 1000 meters. So, we multiply 12 km by 1000 to get the distance in meters: \[12 \, \text{km} \times 1000 = 1.2 \times 10^4 \, \text{m}\] Show more…
Show all steps
Your feedback will help us improve your experience
Cyra Jelle Calleja and 82 other educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
In an experiment to measure the speed of light using the apparatus of Fizeau (see Fig. 35.2$)$ , the distance between light source and mirror was 11.45 $\mathrm{km}$ and the wheel had 720 notches. The experimentally determined value of $c$ was $2.998 \times 10^{8} \mathrm{m} / \mathrm{s}$ . Calculate the minimum angular speed of the wheel for this experiment.
In an experiment to measure the speed of light using the apparatus of Armand H. L. Fizeau (see Fig. 35.2), the distance between light source and mirror was 11.45 km and the wheel had 720 notches. The experimentally determined value of $c$ was $2.998 \times 10^{8} \mathrm{m} / \mathrm{s}$ when the outgoing light passed through one notch and then returned through the next notch. Calculate the minimum angular speed of the wheel for this experiment.
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD