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IGCSE A Level Physics Practice Test 105

Echo Sound Quiz Questions and Answers PDF - 105

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Echo Sound Quiz Answers PDF Download: Test 105

MCQ 521: Change in speed of ultrasound causes

A) reflection
B) diffraction
C) refraction
D) image

MCQ 522: Base unit among following is

A) Newton
B) Joule
C) Candela
D) Watt

MCQ 523: When white light is passed through cool gases, the spectra observed is called

A) line spectra
B) continuous spectra
C) emission line spectra
D) absorption line spectra

MCQ 524: If average kinetic energy of molecules is higher, then temperature of gas is

A) high
B) low
C) zero
D) infinite

MCQ 525: Force provided by breaking system of train if it is decelerating at rate of -3 ms-2 and having mass 10,000 kg is

A) -30,000 N
B) -40,000 N
C) -50,000 N
D) 30,000 N

IGCSE A Level Physics Exam Prep Tests

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