Sound waves are ______ waves.
A. Transverse
B. Electromagnetic
C. Longitudinal
D. none of these
Instrument used for measuring very high temperature is _____.
A. Pyroscope
B. Pyrometer
C. Seismograph
D. Xylometer
When white light is passed through a prism, it splits into ______ colours.
A. 5
B. 6
C. 7
D. 8
Which from the following is true for “Sound”?
A. Sound cannot travel through a vaccum
B. Sound cannot travel through gases
C. Sound cannot travel through liquids
D. Sound cannot travel through solids
CNG is the abbreviation of ______?
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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