I just need question 2 thank you !!

A=29 B=39 C=139 D=12 B C= D= Q1. a. A moveable massless and frictionless bar with a length of 1 = 0.15 m is being moved at a X constant velocity of - m/s from left to right along two conducting rails as shown in the x X Figure. If the system is immersed in a uniform magnetic field of 0.006 T, What is the induced current and its direction (CCW or CW) if the resistance is R=3.0 02? (15 Points) b. Unpolarized light with intensity Io is incident on polarizing sheets. The first sheet has its transmission axis oriented at D with respect to +X and the second polarizer has its transmission axis oriented at 30 with respect to +X. Determine the fraction of light intensity exiting the second sheet? (15 Points) Q2. a. A ray of light enters four boundaries as A, B, C and D of varied materials and refracts as shown below. The index of refraction of the four top medias are (s. (3. nc, and no respectively. Rank the refractive index using >,