সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
Which one of the completed the 100th anniversary of its discovery in 1995?
Which one of the completed the 100th anniversary of its discovery in 1995?
- ক. X-rays
- খ. diesel engine
- গ. detergents
- ঘ. photography
সঠিক উত্তরঃ X-rays
এ সম্পর্কিত আরো প্রশ্ন দেখুন
- Bile is secreted by the---
- The three methods of science are observation, experimentation and ----.
- HIV AIDS can be spread through--
- Which of the following is not a constituent of the atmosphere?
- Which of the following is not a part of the human eye?
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Basic Information of Daily Science, Inventions and...