A. Echo
B. reverberation
C. resonance
D. None of these
Submitted by: Abid Otho
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.
Related Mcqs:
- The principle used in radar is the same as that of Sonar. In radar we use radio waves ; whereas in sonar we use ?
A. red waves
B. Infrared waves
C. Ultrasonic
D. super sonic
E. None of these - Hydrogen bomb is based on the principle of ________ ?
A. Nuclear fusion
B. Artificial radioactivity
C. Natural radioactivity
D. Nuclear fissionSubmitted by: Rashid Mehmood
- Sunlight is composed of___________?
A. Three colours
B. six colours
C. seven colours
D. eight coloursSubmitted by: Mian Jamil Shah
- Muscle fatigue is caused by the accumulation of___________?
A. Uric acid
B. Lactic acid
C. Oxalacetic acid
D. Fyruvie acidSubmitted by: WIQAR AHMAD
- Diamond is harder than Graphite because of___________?
A. Difference in crystalline Structure
B. Tetrahedral structure of diamond
C. Difference in layer of atoms
D. None of theseSubmitted by: Malik Asghar Hussain
- Blood does not coagulate inside the body due to the presence of___________?
A. Haemoglobin
B. Fibrin
C. Heparin
D. PlasmaSubmitted by: Yaseen Nohri
- Deficiency diseases are caused due to the deficiency of___________?
A. Proteins
B. Vitamins
C. Carbohydrates
D. FatsSubmitted by: Irum perveen
- Mach number is used in connection with the speed of___________?
A. Ship
B. Light
C. Sound
D. aircraftSubmitted by: Fahad Mehsud
- Farad is the unit of___________?
A. inductance
B. voltage
C. capacitance
D. None of theseSubmitted by: Asad malik
- Our atmosphere consists of___________ Oxygen approximately?
A. 11% Oxygen approximately
B. 21% Oxygen approximately
C. 31% Oxygen approximately
D. None of theseSubmitted by: Ameer Ali Mirani