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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 1018

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Short Answer

A common optical instrument in a laser laboratory is a beam expander. One type of beam expander is shown in FIGURE P35.29.

The parallel ray of a laser beam of width enter from the left.

a. For what lens spacing d does a parallel laser beam exit from the right?

b. What is the width of the exiting laser beam?



See the step by step solution

Step by Step Solution

Step.1 Given information

a.)From the given values shown in FIGURE

If this equation to

Step 2. Explanation

b.) we need to find width

From triangles picture, we get Value of

So, if is and our answer then shows is

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