MEDIUM
Rajasthan RSMSSB Gram Vikas Adhikari VDO
IMPORTANT
Earn 100

Who invented the revolver?
(a)Samuel Colt
(b)Alfred Wegener
(c)Andreas Vesalius
(d)Alfred B. Nobel

50% studentsanswered this correctly

Important Questions on Scientists and Their Inventions
MEDIUM
Rajasthan RSMSSB Gram Vikas Adhikari VDO
IMPORTANT
Who invented the refrigerator?

MEDIUM
Rajasthan RSMSSB Gram Vikas Adhikari VDO
IMPORTANT
Who invented the nuclear reactor?

MEDIUM
Rajasthan RSMSSB Gram Vikas Adhikari VDO
IMPORTANT
The four blood groups were discovered by whom?

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Rajasthan RSMSSB Gram Vikas Adhikari VDO
IMPORTANT
The electrocardiograph was invented by whom?

MEDIUM
Rajasthan RSMSSB Gram Vikas Adhikari VDO
IMPORTANT
The stethoscope was invented by which of the following?

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Rajasthan RSMSSB Gram Vikas Adhikari VDO
IMPORTANT
The spinning frame was invented by which of the following?

MEDIUM
Rajasthan RSMSSB Gram Vikas Adhikari VDO
IMPORTANT
Sodium was discovered by whom?

MEDIUM
Rajasthan RSMSSB Gram Vikas Adhikari VDO
IMPORTANT
Who is the father of blood transfusion?
