Question: A green laser pointer with 532 nm wavelength is aimed at a photodiode detector which shows a reading of 6.3 mJ/second. How many photons hit the detector in 1.00 seconds?

Can you please help me? I am so stuck!

Thanks

I want to buy a laser pointer which can light matches or fireworks. Whether this one can do so?
100Mw 532nm Waterproof Green laser pointer Pen with Wrist Strap (Black)

http://www.ekindom.com/laser-pointers/waterproof-green-laser-pointer-pen-with-wrist-strap-black_ll0003b

Ok so this might sound kind of funny and/or sad, but recently I’ve been bullied by the opposite sex. I was on the bus riding home from school when this girl suddenly just starts messing with me. Her friend told her to start messing with me because I was kinda sad that day. Anyways, it started with her shining her laser pointer in my eye. I turned around and said to stop politely. She yells out NO and starts calling me names like pus-you know ect. I generally have anger problems so I tried to keep to myself. Soon after she started calling me more names, and I just lashed out and said to shut the bleep up and leave me alone, I barely even know you. Then she started slapping me and punching me in the face. I tried my best to ignore her and refrain from punching her, but I knew it was wrong to do that. then she so arrogantly says “if you don’t hit me, your a pussy for letting a girl beat you up. And if you hit me, your still a pussy for beating a girl up!” That’s when I snapped and started cussing her out. And of course you have the other girls and boys try to be a hero and say that I shouldn’t talk to a girl like that and start to scold me. Then I got off the bus, angry out of my mind, I punched a small hole in my wall and sent a stupid furious message over facebook. I know it was stupid but I was so angry I just wanted to beat her to death. She is known for being a violent girl who thinks she’s bad and messes with guys and girls, trying to fight them, she’s actually pretty small. People call her lesbian mainly because of her hairstyle and tight clothing. She must think it’s cute and funny, but I think it’s trashy and stupid. If I were to actually fight her, I would knock her out but her and her friends and others trying to make her look tough think otherwise. I told my mom, whom I’m living with. She said if she has no right to lay her hands on me and I should’ve smacked her in the face, but she doesn’t understand how I feel about hitting girls. The teachers don’t really care since she’s a girl. Her parents think she’s an angel, in reality she’s a little devil. I can ignore people with no problem until they start shining lasers in my freaking eye and slapping me. I also have a hard time even trying not to ignore her, but it’s just enangering along with the other people talking trash. It’s probably too late to do something, but is there anything I can do, and how does she get away with this stuff?

a neighbor with red and green laser lights shining through my blind, curtain covered window, and then a friend i hear at window walking up and i notice he shines a clear looking laser light through window/blind/curtain…..what is up with this, can they see me through curtains/blinds?

Note: All tests are required to be tested on a regular match head, not a colored black or actual black match head.

Details: Must be tested with a green laser pointer of the specified milliwatts: 100mw, 150mw, 200mw, and 250mw. The laser must be warmed up.

How fast would a 100mw green laser light a match? Or will it not even light one? How fast would a 150mw, 200mw, and a 250mw green laser? Please give a detailed description and exact timings.

EZ 10 POINTS!!!

I just got a Laser (green) pointer + projector(just a filter in front) and it is rated ?

This is all the info given by the laser pointer(sticker)

Max Output Power: ?

I’ve perused the net for quite sometime about the dangers of lasers on the human eye, and I’ve got a question for you brave yahoo answerers. I know that shining a laser directly in an eye is potentially damaging, but can your eyes be damaged by looking at the beam that is produced from the laser? My question is that if I were to shine a laser at an object and then look at said object and stare at the light produced would it damage my eyes? I am a high school history teacher and I use a laser pointer in class, my concern is whether or not the kiddos staring at the laser light could be hurting their eyes. I would assume that observing the beam indirectly would be much less damaging, but we’ve got a couple of kids that can’t help but stare at bright lights and shiny objects so I’m concerned that they might be hurting their eyes by staring at the light for very long periods of time. I’ve got a low powered red laser (don’t know the specifics) and a 5mW, 532nm green laser.

ok my my friend bought a 100mw green laser off the internet and so we went on this dirt road and my friend shined it threw the window and i think some of it reflected into my eye if it did how many mw do u think reflected into my eye if its threw a window anyways ive been seeing these green lines ever since wat shud i do

I never bought something on this site, and I am planning on getting a night light and a 200mw laser pointer there, I was hoping to see how the power came out for you guy’s, thanks!