Markovnikov's Rule will not apply!!
The use of HBr and UV light will not give H+ and Br-.
The UV light photochemically intitiates a radical reaction. Through this reaction 1 electron from bromine forms a bond with 1 electron from the double bond with the Br going to the less substituted side of the double bond and leaving 1 free electron radical on the more substituted carbon because a secondary radical is more stable than a primary radical. This secondary radical then reacts with the hydrogen, giving the anti-Markovnikov addition of HBr.
Hope this helps,
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