does light accelerates when it passes from one medium to another

Dear shashank,

Light accelerates or declearates depending on the refractive index of the medium. Use snell's law,

sin i/ sinr = mew

and mew=v/c

Win exciting gifts by answering the questions on Discussion Forum.

So help discuss any query on askiitians forum and become an Elite Expert League askiitian.

Please feel free to post as many doubts on our discussion forum as you can.we will get you the answer and detailed  solution very  quickly.

All the best.

Regards,
Askiitians Experts
Sagar Singh