Write the method to reduce polarization effect in dry cell​

What type of light does this light bulb produce most (i.e. at what wavelength does the spectrum have maximum intensity)?

Will you chech and finish these for me, because i am stumped with them.

Aperson walking 1 mile everyday for exercise, leaving her front porch at 9: 00 am and returning to her front porch at 9: 25 am. what is the total displacement of her daily walk? a) 1 mileb) 0c) 25 minutes d) none of the above