7.3 F5
Applications of Photoelectric Effect (pg 244-245)

1. LED lamps along road 💡
- in daylight, photoelectric effects of solar cells enables electrical energy to be stored in battery
- at night, LED lamps will light up with power from battery 🔋.

2. Solar power cells

3. light detectors in automatic doors
- use infrared beam & photocells
- when light path is disturbed, photoelectric current in photocell circuit will be disconnected
- door remain open

4. image sensor 📸
- use to convert light into electrical signals
- electrical signals can be processed to form digital images

5. operation of ISS 🛰️
- depends on source of electrical energy generated from solar panels
- has 16 wings of solar panels that capable to generate 84-120kW of electricity.

pg 246 f4

- laser beam which enters water stream experiences repeated TOTAL INTERNAL REFLECTION until it comes out from end of water stream.

☾⋆｡°✩ TIPS CIRI CIRI IMEJ
☾⋆｡°✩ TIPS CHRACTERISTICS OF IMAGE

- lmk if ada salah

4.4 GAS LAWS : PVT TRIANGLE 🔻‼️‼️

✨Road to SPM 2023✨

Modification
📱smartphone camera
🎥CCTV camera

Credit to Aaqif (507/2023)

🇵🇸amazing Physics 🇵🇸

✨Road to SPM 2023✨

Direct current generator vs Alternating current generator

🇵🇸amazing Physics 🇵🇸

✨Road to SPM 2023✨

Penjana arus terus vs Penjana arus ulang-alik

🇵🇸amazing Physics 🇵🇸