Physics
Grade-8
Easy
Question
The sound from the transmitter of the SONAR is reflected by.
- Obstacle
- Transmitter
- Receiver
- None
Hint:
Obstacle
The correct answer is: Obstacle
- The transmitter produces and transmits the ultrasonic waves.
- These waves travel through water and after striking the obstacle get reflected back.
- They are received by the receiver.
- So, the correct option is a.
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The SONAR can detect the enemy ship using _________.
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The reflection of sound in a closed surface is called _______.
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