1. Eye lens type?
A) Concave
B) Convex
C) Plane
D) Cylindrical
Answer: B) Convex
2. Reflection is?
A) Light bounce
B) Light bend
C) Light break
D) Light stop
Answer: A) Light bounce
3. Refraction is?
A) Light bounce
B) Light bend
C) Light break
D) Light stop
Answer: B) Light bend
4. Smallest part of atom?
A) Proton
B) Electron
C) Neutron
D) Nucleus
Answer: B) Electron
5. Cell is basic unit of?
A) Matter
B) Energy
C) Life
D) Force
Answer: C) Life
6. Sun energy source?
A) Chemical
B) Nuclear
C) Electrical
D) Wind
Answer: B) Nuclear
7. Metals are?
A) Dull
B) Lustrous
C) Brittle
D) Soft
Answer: B) Lustrous
8. Acid taste?
A) Sweet
B) Sour
C) Salty
D) Bitter
Answer: B) Sour
9. Base taste?
A) Sour
B) Bitter
C) Sweet
D) Salty
Answer: B) Bitter
10. Neutral pH value?
A) 5
B) 7
C) 9
D) 11
Answer: B) 7
