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Information and communication technology
4 Class 10 Physics questions with answers and explanations.
Printable worksheet with answer key
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ICT stands for:
- 1 Internal Circuit Test
- 2 Information and Communication Technology
- 3 Internet Control Terminal
- 4 Information Code Transfer
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Correct answer: Information and Communication Technology
ICT is Information and Communication Technology.
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Radio waves used in communication are a type of:
- 1 Water waves
- 2 Electromagnetic waves
- 3 Seismic waves
- 4 Sound waves
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Correct answer: Electromagnetic waves
Radio waves are electromagnetic and can travel through a vacuum.
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Satellites orbiting at about 36000 km that appear fixed above a point are called:
- 1 Geostationary satellites
- 2 Weather balloons
- 3 Space probes
- 4 Polar satellites
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Correct answer: Geostationary satellites
Geostationary satellites orbit once per day and stay above the same spot.
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Which of these is used to carry signals as light pulses?
- 1 Coaxial cable only
- 2 Rubber tube
- 3 Copper wire
- 4 Optical fibre
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Correct answer: Optical fibre
Optical fibres carry data as light by total internal reflection.