1. Radioactivity was discovered by __________.
A. Kelvin
B. Thomson
C. Rutherford
D. Bacquerel

2. A device which converts chemical energy into electrical energy is called __________.
A. motor
B. generator
C. moving-coil meter
D. battery

3. A camera uses a __________ to form an image.
A. convex lens
B. concave lens
C. condenser lens
D. none of these

4. Which from the following is NOT a conductor?
A. Aluminium
B. Silicon
C. Graphite
D. All are conductors

5. X-rays were discovered by __________.
A. Rontgen
B. Thomson
C. Rutherford
D. Bacquerel

6. The speed of light is __________.
A. 280,000 km/s
B. 300,000 km/s
C. 320,000 km/s
D. none of these
7. Urine is produced in __________.
A. Kidneys
B. Lungs
C. Large intestine
D. Liver

8. Blood is cleaned by __________.
A. Lungs
B. Liver
C. Heart
D. Kidneys

9. According to Big Bang Theory, the Universe began about __________ billion years ago.
A. 10 – 20
B. 20 – 30
C. 30 – 40
D. 40 – 50

10. Biosensor is used to measure?
A. Blood glucose level
B. The body pH value
C. Amount of hemoglobin
D. Salinity in Urine


1. D
2. D
3. A
4. D
5. A
6. B
7. A
8. D
9. A
10. A