When white light is passed through a prism, it splits into ___ colors.
A. 5
B. 6
C. 7
D. 8
CNG stands for?
A. Converted Natural Gas
B. Conduced Natural Gas
C. Conducted Natural Gas
D. Compressed Natural Gas
Which from the following is NOT a conductor?
A. Aluminium
B. Silicon
C. Graphite
D. All are conductors
A camera uses a _____ to form an image.
A. convex lens
B. concave lens
C. condenser lens
D. none of these
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