The density of water is __________?
The density of water is __________?
		A. 1 g/cm3
B. 1.5 g/cm3
C. 2 g/cm3
D. none of these
		A. 1 g/cm3
B. 1.5 g/cm3
C. 2 g/cm3
D. none of these
		A. Ultrasonic waves
B. Electromagnetic Waves
C. Fundamentals of waves
D. Transverse wave
		A. Echo
B. reverberation
C. resonance
D. None of these
SONAR stands for Sound Navigation and Ranging. SONAR works on the principle of reflection (echo) of sound waves from the object. It stands for Sound Navigation and Ranging.
		A. copper
B. zinc
C. aluminium
D. iron
The autonomic nervous system innervates all of these except?
		A. Cardiac muscles
B. Skeletal muscles
C. Smooth muscles
D. none
The Stevenson screen contains all of these EXCEPT:
		A. Wet bulb thermometer
B. Maximum thermometer
C. Ordinary thermometer
D. Anemometer