The Objective Lens of a Telescope Has a Focal Length

question 108

Short Answer

The objective lens of a telescope has a focal length of 1.90 m. When viewed through this
telescope, the Moon appears 5.25 times larger than normal. How far apart are the objective
lens and the eyepiece when this instrument is focused on the Moon?

---

Definitions:

Gross Margin Ratio

A financial metric indicating the percentage of revenue that exceeds the cost of goods sold; used to assess a company's financial health.

Return on Common Stockholders' Equity

A financial ratio that measures the profitability generated from the common stockholders' equity investment, indicating how efficiently equity capital is being utilized.

Total Asset Turnover

Total asset turnover measures how efficiently a company uses its assets to generate sales, calculated as sales divided by average total assets.

Inventory Turnover

A ratio indicating how many times a company's inventory is sold and replaced over a period, used to assess efficiency in managing and selling products.