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 rays of a laser beam of width w 1 enter from the left a For what lens spacing d does a parallel laser beam exit from the right b What is the width w 2 of the exiting laser beam f fi fi 0 W2 FIGURE P35 29 d

Question: 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 rays

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 rays of a laser beam of width w₁enter from the left.

$f>\fi| fi$

a. For what lens spacing d does a parallel laser beam exit from the right?b. What is the width w₂ of the exiting laser beam?

f>\fi| fi

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