IGCSE A Level Physics Online Tests
Echo Sound MCQ (Multiple Choice Questions) PDF Download
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The MCQ: With gel between skin and transducer percentage of reflected intensity of ultrasonic is; "Echo Sound" App Download (Free) with answers: 0.03%; 0.05%; 0.06%; 0.08%; to study e-learning courses. Practice Echo Sound Quiz Questions, download Google eBook (Free Sample) for best online colleges for teaching degree.
Echo Sound MCQs: Questions and Answers PDF Download
Acoustic impedance of human skin is
- 1.65 × 106 kg m² s-1
- 1.71 × 106 kg m-2 s-1
- 2 × 106 kg m-2 s-1
- 2 × 107 kg m-3 s-2
With gel between skin and transducer percentage of reflected intensity of ultrasonic is
- 0.03%
- 0.05%
- 0.06%
- 0.08%
Acoustic impedance is defined as
- ρ⁄c
- ρc
- c⁄ρ
- ρ+c
Change in speed of ultrasound causes
- reflection
- diffraction
- refraction
- image
IGCSE A Level Physics Practice Tests
Echo Sound Textbook App: Free Download (Android & iOS)
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A Level Physics MCQs eBook Download
O Level Physics Practice Questions
IGCSE A Level Physics Practice Tests
O Level Physics MCQ Questions
- In a science lab, a student heats up a chemical from 10 °C to 25 °C which requires thermal energy of 30000 J. If mass of object is 40 kg, specific heat capacity of chemical would be
- An iron wire resists 850 Ω at ice point and 860 Ω at steam point, and resistance of wire is 853 Ω room temperature would be
- A wooden trolley of mass 20 kg accelerates at 2 m s-2, if force due to engine is 50 N, friction force is equal to
- Specific heat capacity of salty (sea) water is
- If an unmarked mercury thermometer has l100 55 cm and l0 is 5 cm, if lθ is 45 cm temperature of thermometer would be
Echo Sound MCQs Book Questions
- In order to keep a body moving in a circle, there exists a force on it that is directed toward center of circle. This force is known as
- Instrument which transfers energy to electric charges in a circuit is
- At end of communication system, signal is converted from radio to
- In elastic collisions,
- For destructive interference, path difference is