SONAR is based on the principle of: MCQ with Answer and Explanation

SONAR is based on the principle of:
A. Refraction of sound waves
B. Polarization of sound waves
C. Reflection of sound waves
D. Diffraction of sound waves
Answer: Option C
Solution (By JKExamLibrary)
SONAR (Sound Navigation and Ranging) relies on the reflection of ultrasonic waves. A transmitter sends out sound waves, which travel through water, strike an object (like a submarine or the seabed), and reflect back as an echo to a receiver. By measuring the time taken for the echo to return, the distance can be calculated.

This question belongs to: Science Physics

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The process of heat transfer by actual movement of fluid particles is called:
A. Radiation
B. Convection
C. Advection
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Correct Answer: Option B


Explanation:
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Question #2 Report Error
A 6 V battery is connected to a 3 Ω resistor. Current is
A. 3 A
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Correct Answer: Option C


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This question belongs to: Science Physics
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The distance traveled by an object is directly obtained from
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Correct Answer: Option A


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This question belongs to: Science Physics