Can UV rays pass through glass?

Question

Sometimes when my mom drives, her arms get extremely tanned . i've heard that uv rays can't pass thru glass but they seem to!! my mom always has to slather on sunscreen on her arms when she drives!

Answer 1

of course it can. think about tanning beds, the UV light is under glass.

Answer 2

The reason why you tan in a car is because her arm is in the sun. UV ray can pass through glass, but it is protected. You might hear about 'solar tinted' glass, which is essentially glass that protects you from the harmful UV rays. So if you drive with the sun, you'll have one darker arm. If she drives with the window open and her arm, she could put sunscreen on, but it's not incredibly necessary since I doubt she drives for more than five hours in one sitting. It's no different than driving with the window up and with her arm rested on the door. She'll tan, it's a natural habit. She just won't get cancer as quickly... although she really isn't going to die with her arm hanging out the window unless she hits a pole. It's not a big deal.

Answer 3

UV rays do pass through glass, even tinted glass. Sunglass' have a polorized coating that "bends" the UV ray to make them less harmfull to yr eyes.

Answer 4

Most glass used in houses and cars is designed to block some UV. Depends on her driving habits and how new or old the car is :o)

Answer 5

yes it can, some cars have a uv protection and others do not, I was going to get transitional lenses for my glasses and my eye dr told me that in some cars they do not work, so I just wear my contacts when I am driving so I can wear my sunglasses.

Answer 6

Of course they can pass through glass!

Answer 7

Of course they can pass thru glass.

Answer 8

more UV will be reflected than visible light, but a whole lot will still penetrate. trust me, you WILL get sunburned if you drive all day long