Hey there!
When light changes speed, it REFRACTS.
Your answer is going to be option C.
Hope this helps you.
Have a great day!
        
             
        
        
        
347÷134=2.589552239 meters per second
2.589552239×60= 155.3731343 meters per hour
155.3731343 meters per hour= 0.096544389701642 miles per hour
hopefully this was right.
        
             
        
        
        
 
- P is power 
- R is resistance
 
Hence
 
 
- Therefore if power is low then resistance will be high.
The first bulb has less power hence it has greater filament resistance.
 
        
             
        
        
        
The answer is c because a metallic bond Is 1. formed of the attraction between positively charged metal nuclei
2. and surrounding sea electrons