Related Questions

240 radioactive grams of goo loses half its radioactivity every 10 days. How many grams of radioactive goo is left in 40 days?
A 120
B 60
C 15
D none
The half life period of a radioactive substance is best determined by counting the number of alpha particles emitted per second in a Geiger Muller counter from its known quantity. If the half life period of a radioactive substance is one month, then
A $${\frac{3}{4}^{{\text{th}}}}$$ of it will disintegrate in two months
B It will completely disintegrate in two months
C It will completely disintegrate in four months
D $${\frac{l}{8}^{{\text{th}}}}$$ of it will remain intact at the end of four months
From which mineral is radium obtained?
A Rutile
B Haematite
C Limestone
D Pitchblende
The ---- of radium brought much fame to Madame Curie
A invention
B use
C detection
D discovery
Radium এর ভরক্রটি 0.95 amuহলে উহার বন্ধন শক্তি ক্যালরীতে কত হবে?
A 884.92 cals
B 14.19×10-4 cals
C 3.39×10-11 cals
D 932.5 cals
Which Bangladeshi scientist discovered the complete genetic sequence of jute?
A Dr. Maqsudul Alam
B Dr. Abul Hussam
C Dr. M Innas Ali
D Saleemul Huq
Which scientist of Bangladesh discovered the jute genome decoder?
A Dr Shariful Alam
B Dr Nusrat Alam
C Dr Mohammad Jafar Iqubal
D Dr Maksud Alam
Which scientist discovered the 'Penicillin'?
A Louis Pasteur
B Alexander Fleming
C Robert Koch
D Ernst Chain
Which Bangladeshi Scientist discovered 'Panchabrihi' new method of rice cultivation?
A Dr. Sattar Mondol খ. Dr. Shakila Salam
B Dr. ABM Arif Hasan Khan Robin
C Dr. Abed Chowdhury
The scientist who first discovered that the earth revolves round the sun was -
A Newton
B Einstein
C Dalton
D Copernicus

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