The speed of light is higher in a rarer medium than a denser medium. Thus, a ray of light travelling from a rarer medium (medium I) to a denser medium (medium II) slows down and bends towards the normal. I. When light travels from denser medium to rarer medium, it’s speed.a. Increases b. Decreases c. Remains the same d. None II. The ratio of speeds in medium I and medium II is called: a. Refractive index of medium II with respect to medium I b. Wavelength c. Frequency d. None III. Absolute refractive index is defined as:a. \(\frac{v_1}{v_2}\)b. \(\frac{c}{v}\)c. \(\frac{v}{c}\)d. \(\frac{v_2}{v_1}\)IV. Angle of deviation (δ) for light travelling from rarer to denser medium is given as: a. i – r b. r - i c. \(\frac{i+r}{2}\)d.\(\frac{1-r}{2}\)V. In comparing two media, the one with the larger refractive index is: a. Optically rarer medium b. Optically denser medium c. Both a and b d. None