Q.1 How thick is the pinch invented by Scientist to detect diseases?
A. 100 nanometers
B. 75 nanometers
C. 50 nanometers
D. 23 nanometers
Answer...
Ans: 50 nanometers
Q.2 How many nanometers are there in One millimeters?
A. One million
B. Four million
C. 10 million
D. 2 million
Answer...
Ans: One million