The left ventricle is one of the four chambers of the heart. it’s located in the bottom left portion of the heart below the atrium, separated by the mitral valve. i learned this a while back but i hope i could help! :)
Can't you look it up or something? Idk what it is but I can try and look it up for ya! If you want
Using Placks’s constant and frequency
Answer:
71 cm
Explanation:
The formula to apply here is θ = 1.22λ/D,
diameter of central maximum =1.0 cm
wavelength, λ= 633 nm
Diameter of pinhole = 0.11 mm
where θ = arc length/distance = s/R
s/R = 1.22λ/D
(.005)/R = (1.22)(633 X 10^-9)/(1.1 X 10^-4)
R = .71 m which is 71 cm