What is the speed of sound in air?
A. 1235 km/h
B. 1290 km/h
C. 1347 km/h
D. 1495 km/h
A. Carbon monoxide
B. Sulfur dioxide
C. Carbon dioxide
D. Methane
A. Gain water
B. Lose water
C. Exchange gas
D. None of these
A. Real, Inverted, Magnified
B. Real, Inverted, Diminished
C. Virtual, Inverted, Diminished
D. Real, Upright, Diminished
A. Earth comes between sun and moon
B. Moon comes between earth and sun
C. Sun comes between earth and moon
D. Sun rays don’t reach earth
A. Hygrometer
B. Rain Gauge
C. Pedometer
D. Barometer
A. Time constant
B. Energy Quantum
C. Heat constant
D. Wave constant