Physics in Everyday Life and Applications

1. Basics of Rockets

1. Rockets work on the principle of Newton’s Third Law of Motion: "Every action has an equal and opposite reaction."
2. Uses propellants (solid, liquid, or hybrid) to generate thrust.
3. Equipped with a payload that can carry satellites, instruments, or astronauts.
4. Critical components include engines, fuel tanks, and guidance systems.
5. Widely used in space exploration and satellite deployment.

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1. Radio Communication

1. Uses radio waves to transmit signals over long distances.
2. Based on the principles of electromagnetic wave propagation.
3. Consists of a transmitter that sends signals and a receiver that decodes them.
4. AM (Amplitude Modulation) and FM (Frequency Modulation) are the two main types of radio signals.
5. Widely used for broadcasting, navigation, and emergency communication.

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1. Incandescent Bulbs

1. Work on the principle of Joule heating.
2. An electric current passes through a tungsten filament, heating it to a high temperature.
3. The filament emits light due to incandescence.
4. Only about 5-10% of energy is converted to light; the rest is lost as heat.

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