Physical Science Of Class - X ( দশম শ্রেণীর ভৌতবিজ্ঞান ) This app is for class - x students of WBBSE. Get chapter Notes. Chapter wise MCQ, VSA, SA, LA practice and Test Question-Ans set. Contains Mock Test Question set. This app has simple user interface. More you practice more you learn. Sorry for any unintentional mistake.