IGCSE A Level Physics Practice Test 6

Radio Waves MCQ (Multiple Choice Questions) PDF - 6

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Radio Waves Questions and Answers PDF Download: Quiz 6

MCQ 26: As compared to sound waves the frequency of radio waves is

A) lower

B) higher

C) equal

D) may be higher or lower

MCQ 27: Decrease in strength of signal is known as

A) tuning

B) modulation

C) attenuation

D) amplification

MCQ 28: EMF can be induced in a circuit by

A) changing magnetic flux density

B) changing area of circuit

C) changing the angle

D) all of above

MCQ 29: Systematic errors occur due to

A) overuse of instruments

B) careless usage of instruments

C) both A and B

D) human sight

MCQ 30: Speed of Earth when a rock of mass 60 kg falling towards Earth with speed of 20 ms^-1 is

A) 2.4 × 10^-22 ms^-1

B) 3.5 × 10^-33 ms^-1

C) −2.0 × 10^-22 ms^-1

D) −3 × 10³⁴ ms^-1

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