Question

Gather information about solar light, solar water heating system and solar cooker.

Answer 1

1. Solar Light (Solar Lamp/Solar Street Light)

A solar light is a lighting system that uses solar energy from the Sun to generate electricity.

Working:

• Solar panel absorbs sunlight
• Converts it into electrical energy
• Energy is stored in a rechargeable battery 
• LED bulb uses this stored energy at night

Uses:

• Street lighting
• Rural lighting
• Gardens and homes

Advantages:

• Renewable and eco-friendly
• No electricity bill
• Works in remote areas

2. Solar Water Heating System

A system that uses solar energy to heat water for domestic or industrial use.

Working:

• Solar collectors absorb sunlight
• Heat is transferred to the water pipes
• Hot water is stored in an insulated tank

Uses:

• Bathing water in homes
• Hotels and hospitals
• Industries

Advantages:

• Saves electricity and fuel
• Pollution-free
• Low maintenance cost

3. Solar Cooker

A device that uses sunlight to cook food without using fuel or electricity.

Working:

• Sunlight is trapped using a glass cover or reflective mirrors
• Heat is concentrated inside the box
• Food is cooked slowly using solar heat

Types:

• Box type solar cooker
• Parabolic solar cooker

Uses:

• Cooking rice, vegetables, and pulses
• Used in sunny regions

Advantages:

• No fuel required
• Environment-friendly
• Preserves nutrients in food

All three systems use solar energy, which is renewable, clean, and sustainable, helping reduce pollution and dependence on fossil fuels.