Answer: number 2 is d correct answer for this MCQs
Explanation:
Answer:
B on edge
Explanation:
the piles of the magnetic field generated around the armature are attracted to the opposite poles of the permanent magnent. As the opposite poles align, the commutator reverses the current direction so like poles are aligned and the armature continues to spin
Explanation:
Given
Refractive Index 
angle of incident
Light originates in the medium of higher refractive index
Let 
and 
be the incident and refraction angles respectively thus according to snell's law
(b)Ray originates from lighter medium
I am fairly certain that the plant would lose water and that gas flow and such would occur
