How far should a baby from TV or other appliances with radiation? It is truethat radiation has an effect to babies ? What are those effect? Thank you!

So we asked our pedia the same question. She said that it actually depends on the size of the tv or gadget. The bigger the screen is, the farther the kid should be. For regular size mobile phones, it should be a ruler. If it's a tab, should be 2 rulers. If the TV is 42", the kid should be 10 feet away.