Which final year project should i choose as an Eng undrgrad?

I am doing Electrical and Electronics engineering. I am current in my 6th sem (8 in total). From the 7th sem i would have to choose a topic/project for my final year, which will go on till the end of the course. I want to pursue physics as my graduate studies. I have been trying to think of some project which will relate to physics and some maths too, as i also read about it in "Do you want to be a physicist" thread.

My university doesnt offer physics courses and isnt very good for research too. So i want some topic which will be in the realm of applied physics but which will help me later in my graduate studies too. I dont wanna do some robotics, programming, or renewable energy because that wont relate to pure physics. Also, since i am just an undergrad, the target shouldnt be something so radical and revolutionary, that i would never be able to achieve.. i was looking into quantum dots but i couldnt find a suitable application i could work on.
All suggestions will be appreciated. i just wanna use the last year of my engineering to prepare for further studies.