Please help me out A laser beam is said to be incoherent because there is no int

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Please help me out

A laser beam is said to be incoherent because there is no interference of waves within the beam. o. T F nswer the following questions by writing on the blank lines the letter(s) of the word or ph at best complete(s) the statement or answers the question. Choose only one answer unless a rticular question indicates otherwise When a wave traveling from one medium is partially reflected at the border of another medium, (A) part of its energy is lost and the rest is reflected back into the original medium (B) all of its energy continues on into the new medium (C) all of its energy is reflected back into the original medium (D) part of its energy continues into the second medium and part of its energy is reflected back into the original medium. (over) 103 2494-2* Inrduction in this study guide to find the online Guide: Internet Resources.) 2494-2* (over) 10s

Explanation / Answer

11)D some part of energy is reflected back and some goes into next medium. No surface is perfect reflector or transmitter.

12) B this is called as diffused reflection.

13) A mirage occurs due to refraction.

14)C all colors, each droplet is capable of dipersing light. But lots of droplets intensify the colors giving it good visibility.

15) B , D ok, about C i want to say that , its not 100 percent but almost 100 percent, say 99.9999 percent. But can't be 100 percent. Loss is always there.

Please post maximum 4 questions. Thank you.

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