Question

przelicz :

c = 3 * 10 ^ -8 m/s

f1=?

f2=?

lambda1=400n.m

lambda2=800 n.m

c=lambda*f

lambda=v*T

T=1/f

lambda=v/f -> c=lambda * f

Answer 1

c = 3 x 10⁸m/s

λ₁ = 400nm = 400 x 10⁻⁹m

λ₂ = 800nm = 800 x 10⁻⁹m

 

f = ?

T = ?

 

f = c/λ

T = 1/f = λ/c

 

f₁ = 3 x 10⁸m/s / 400 x 10⁻⁹m = 0,0075 x 10¹⁷Hz = 75 x 10¹³Hz

f₂ = 3 x 10⁸m/s / 800 x 10⁻⁹m = 0,00375 x 10¹⁷Hz = 37,5 x 10¹³Hz

 

T₁ = 400 x 10⁻⁹m / 3 x 10⁸m/s = 133⅓ x 10⁻¹⁷s

T₂ = 800 x 10⁻⁹m / 3 x 10⁶m/s = 266⅔ x 10⁻¹⁷s

 

----------------------------------------------------------------------------------------------------------

Feci, quod potui, faciant meliora potentes

 

Pozdrawiam :)