1) Why are diode lasers superior for launching light into a fibre?

2) Are light-emitting diodes suitable for launching light into single mode fibres/

3) What is the relationship between 2 polarizer angles when the transmitted light intensity is
(a) maximum
(b) zero
?

4) When a polarizer is rotated in front of a light source, what is observed? why?

5) When a second polarizer is inserted, under what circumstance will the transmitted light intensity be zero?

6) When 2 polarizers are facing tghe same direction and looked into, we can see things. but when 1 of the polarizer is changed direction, nothing can be seen through both of them when together. then when another polarizer is put diagonally between the 2 polarizers, things can be see. Explain the paradox here.

2006-08-16 14:41:46 · 2 answers · asked by edwinvandesar 1 in Physics

0 ⤊

4 + (3) / (x - 2) = (5) / (x + 4)?

solve for x.

thanks.

2006-08-16 14:40:56 · 10 answers · asked by shih rips 6 in Mathematics

0 ⤊

In a two-axis system each point has __________ coordinate(s)?

2006-08-16 14:40:40 · 4 answers · asked by David G 1 in Mathematics

2 ⤊

how many weeks, days, hours, and seconds are in a 4 months?

2006-08-16 14:40:25 · 6 answers · asked by savethew0rldlosethegirl 2 in Mathematics

3 ⤊

Is there Biblical proof of alians and ufos?

2006-08-16 14:37:17 · 11 answers · asked by futuredivama 1 in Astronomy & Space

2 ⤊

Number Series?

What is the next number in the series, 1,2,6,24....

2006-08-16 14:35:28 · 9 answers · asked by bre 3 in Mathematics

0 ⤊

Why is the pituitary gland considered the gland?

2006-08-16 14:34:36 · 5 answers · asked by aida g 1 in Biology

0 ⤊

why are clouds dark during a storm?

2006-08-16 14:31:05 · 10 answers · asked by fred 1 in Weather

0 ⤊

3x^3 + 5x + 2 = 0?

solve for x.
i think there should be 3 answer because the 3 is cubed.

2006-08-16 14:30:06 · 4 answers · asked by shih rips 6 in Mathematics

5 ⤊

here's a braincracker for you: 1,2,4,8,15,30,50,100...what's the next number? why?

I bumpt into this sequence some time ago but as much as I've tryed I haven't found an answer as well as everybody else I know. Can you solve it? Please give the next answer to the sequence and explain your hypothesis.

2006-08-16 14:28:24 · 18 answers · asked by somebody 1 in Mathematics

0 ⤊

Are Swedish people nice?

Swedes are wonderful hard working people, and I love them; however, I have heard that Swedes can be very standoffish, and quiet. I work with a Swede - he is very cold. Has anyone been to Sweden? Is this true?

2006-08-16 14:26:59 · 7 answers · asked by irishman 3 in Geography

0 ⤊

Can anyone help me calculate my time card?

I work for a company that uses a weird timeclock. My normal schedule is 3pm to 11pm. When I clock in, my timecard reads: 15.00 (that's if I am here on time) Then when I punch out, my timecard reads: 23.00 (assuming I leave on time)

I get totally confused when my timecard reads:

In at: 15.98 (my best guess is almost 4pm) help
Out at: 23.05 (my best guess is 11:10pm) help

Does anybody know a formula I can use to figure out my time.
Or even better does anyone know a free website that can do these calculations for me?

Any help here would be greatly appreciated. Thanks

2006-08-16 14:26:16 · 7 answers · asked by Anonymous in Mathematics

0 ⤊

Can someone please help me with my Algebra?

I need to find the equation of the line through the given pair of points in standard form using only integers.

1.(3,0) and (0,-4)
2.(-2,3) and (-3,-1)
3.(4,-1) and (-2,-6)
4.(-3,6) and (9,6)
5.(-2,0) and (0,3)
6.(9,-5) and (12,6)
7.(-3,5) and (2,1)
8.(-7,2) and (-7,-6)

2006-08-16 14:26:07 · 6 answers · asked by photoman9988 1 in Mathematics

0 ⤊

who was the first king of Portugal?

2006-08-16 14:24:24 · 3 answers · asked by magistretc 1 in Geography

0 ⤊

is mathematics only a tautology?

it is, you know!

2006-08-16 14:22:45 · 6 answers · asked by ixat02 2 in Mathematics

0 ⤊

What is Chemistry?

2006-08-16 14:21:53 · 7 answers · asked by brad l 1 in Chemistry

0 ⤊

If u had a child, how would u describe the definition of a rational number?

2006-08-16 14:20:18 · 8 answers · asked by Nicky 1 in Mathematics

0 ⤊

(1) / (2x+3) + (1) / (x-1) = (1) / (2x+3)(x-1)?

solve for x.

thank you.

2006-08-16 14:16:27 · 4 answers · asked by shih rips 6 in Mathematics

0 ⤊

In a 2D coordinate system point A(3,-6) B(1,1) & C(7,6). Find the area of the triangle ABC.?

A. 26
B. 24
C. 20
D. 17.5
E. 14

2006-08-16 14:16:04 · 5 answers · asked by cocoabundle 1 in Mathematics

0 ⤊

(3x / x-1) = 2?

solve for x

thank you.

2006-08-16 14:14:25 · 10 answers · asked by shih rips 6 in Mathematics

5 ⤊

NASA says the documents are missing...?

700 boxes that held all the documents about the landing on the moon have been missing since last year. All of them. Now did we really land on the moon or NASA is now making up this excuse because it was a lie to begin with?

2006-08-16 14:12:19 · 9 answers · asked by AslanMusic 3 in Astronomy & Space

1 ⤊

If a point in three-dimensional system is labeled with coordinates (1,2,-2) what is the Z coordinate?

2006-08-16 14:06:45 · 6 answers · asked by David G 1 in Mathematics

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