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
A device which converts chemical energy into electrical energy is called:
A. motor
B. generator
C. moving-coil meter
D. Battery
For a fixed mass of gas at constant temperature, if we decrease volume, the pressure will:
A. also decrease
B. increase
C. remains constant
D. none of these
- Go to the previous page
- 1
- …
- 59
- 60
- 61
- 62
- 63
- 64
- 65
- …
- 76
- Go to the next page