Answer:
C) 24.4°
Explanation:
let nd = 2.419 be the index of refraction of diamond and na  = 1.0 be the index of refraction of air  and ∅c be the critical angle.
according to Snell's Law:
sin(∅c) = na/nd
sin(∅c) = (1.0)/(2.419)
       ∅c = 24.4° 
 
        
             
        
        
        
Answer:
step bro was stuck on the elevator 
Explanation:
 
        
             
        
        
        
For a wave:
v = fλ
v is the velocity, f is the frequency, and λ is the wavelength.
Assuming the velocity of the wave doesn't change...
If you increase its frequency, its wavelength will shorten.
 
        
                    
             
        
        
        
Where are the following awnsers?