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IGCSE A Level Physics Practice Test 54

# Channels Comparison MCQ (Multiple Choice Questions) PDF - 54

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The MCQs: Frequency of sky waves is; "Channels Comparison" App Download (iOS & Android) Free with answers more than 3 mhz, less than 3 mhz, less than 2 mhz and exactly 2 mhz to study online tutor courses. Practice communication systems questions and answers, Google eBook to download free sample for free online college classes.

## Channels Comparison Questions and Answers : Quiz 54

MCQ 266: Frequency of sky waves is

1. less than 3 MHz
2. more than 3 MHz
3. less than 2 MHz
4. exactly 2 MHz

MCQ 267: Electrons show diffraction effects because their de Broglie wavelength is similar to

1. spacing between atomic layers
2. no. of atomic layers
3. nature of atomic layers
4. positioning of atomic layers

MCQ 268: Wavelength of x-rays is in range

1. 10-8 to 10-13 m
2. 10-7 to 10-14 m
3. 10-10 to 10-15 m
4. 10² to 109 m

MCQ 269: In a springy collision, if the fast moving trolley collides with a slow one, then the fast one will bounce back at speed of

1. slow one
2. less than slow one
3. more than slow one
4. with the same speed as before

MCQ 270: Number of degree a complete circle represents is

1. 90°
2. 180°
3. 270°
4. 360°

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