D
Because the rest of the answers are illogical
Answer:
The correct answer to that question is HENRY
Answer:

Explanation:
A polarizer changes the orientation of the oscillations of a light wave.
I₀ = Intensity of unpolarized light = 10
θ = Angle given to the polarizer = 60°
Intensity of light
I = I₀cos²θ
⇒I = 10cos²60

So, the after passing through the second polarizer is 
D xrxtxtxt t txt yhhgedd Ed ggdfn
Rank of the radiation particles according to their ability to penetrate solid objects, from the best able to penetrate to the least able to penetrate:
C ) gamma particle, beta particle, alpha particle.