Proving How Light Propagates in a simple straight

Proof light propagates straight you can see for yourself. For example, using the three middle perforated cardboard. Then enforced on the table and brought closer to the source light. Attach the clamp so that the paper can stand. Let us begin activities on together!

Tools and materials

•  3 pieces of cardboard with holes in the middle
• Wood clamp
• 1 piece Desk
• candles
• lighters

 

 
Step-by-step activities

• Jepitlah three paperboard which has been hollowed middle with wood clamp! 
• Place in a row on the table!
• Put candles and turn near the third carton! 
• Align the flame with cardboard hole!
• Perform these activities in place / dark room! 
• Can you see the light of a candle? 
• Slide one carton (the hole is straight)!
• Observe how the propagation of light!

These experiments, it can be proven that light propagates straight. Straight propagating light beams can be seen in the light car. Note the beam at the cinema! The beam straight staring at the movie screen. Beams of light coming from a film projector transmitted

 

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