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
- The center of the earth is known as the--
- A barometer is used for measuring--
- "To every action there is an equal and oposite reaction"-- this theory has been given by--
- Who among the following evolved the concept of relationship between mass and energy?
- The earth rotates from---
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Basic Information of Daily Science, Inventions and...