1A ray of light is traveling from material 1 to material 2 with index of refractions * n1=1.o and n2=1.2 respectively. The angle of incidence is 30 degrees. How much is the angle of refraction? O 30 degrees 0 ?3.?4 degrees 0 0.02 degrees 0 41.81 degrees 8. Three resistors R1=1 ohms, R2=2.5 ohms and R3=3 ohms are connected in * series circuit. How much is the total resistance of the entire circuit? 0 1.?3 ohms O 0.53 ohms O 6.5 ohms O u 9. In item no. 8 if the voltage source is 10 volts, how much current is flowing through each resistor O H =1 .54 Amperes, i2='l .54 Amperes, l3=1.54 Amperes O H ='l III Amperes, I2: 4 Amperes, I3: 3.33 Amperes O H =53? Amperes, i2=5.?? Amperes, |3=5.'2'7'r Amperes O n =0, i2=o, |3=IZI 10. Which of the following is NOT true about circuits? * O A circuit requires a conducting path 0 The current flows from the point of higher potential to a point of lower potential 0 The current flows in the direction of the electron flow 0 A circuit requires a voltage source 11. Which of the following statements is correct? * 0 Electric field lines can intersect with each other while magnetic field lines do not. 0 The flux of electric field is dependent on the amount of charge while the flux of magnetic field is equal to zero 0 A field force propagates through the electric field while no force is propagating through the electric magnetic field 0 Electric fields affect chraged particles while magnetic fields do not 12. The following are properties of electric field EXCEPT: * O Decreases in magnitude when distance increases 0 The density of electric field lines determine the strength of the electric field 0 The electric field lines start from the negative charged and ends on positively charged particles 0 In the absence of oppositely charged particles the electric field line of one particle extends to infinity