Use the following set of phenomena that occur when light interacts with matter to answer questions 1 through 3.

A. Reflection  B. Refraction C. Dispersion. D. Diffraction E. Total Internal Reflection

1. The phenomenon present in fiber optics is based is 

2. The phenomenon responsible for alternating light and dark bands when light passes through two or more narrow slits?

3. The phenomena that cause the rainbow when the sunlight hits water droplets are

To Answer questions 4-7 use the following properties of images are for in different cases from mirror or lenses, please match every image with the corresponding situation:

A. Image: Real, Inverted and Larger           C. Image Real, Inverted and Smaller

B. Image: Virtual, Erect, and Larger            D. Image: Virtual, Erect, and Larger

4. An object place at a distance of 3x the focal length in front of convex mirror.

5. An object place at a distance within the focal length of a concave mirror.

6. An object place at a distance between one and two focal lengths of a convergent lens.

7. An object place at a distance of 2.5 focal lengths of a divergent lens.

8. A spherical concave mirror has a radius of curvature of 20 cm. How far from the mirror is the focal point located?

a. 10 cm           b. 20 cm          c. 30 cm

d. 40 cm

9. If a material has an index of refraction of 1.50, what is the speed of light through it?

a. 2.00 x 108 m/s         b. 3.00 x 108 m/s         c. 4.50 x 108 m/s         d. 6.00 x 108 m/s

10. A light ray in air is incident on an air to glass interface at an angle of 45° and is refracted at an angle of 30° to the normal. What is the index of refraction of the glass?

a. 1.23 b. 1.31 c. 1.41 d. 1.74

11. An object is 4.1 cm tall and 10.3 cm from a converging lens. The image is virtual and 6.2 cm tall. What is the focal length of the lens?

a. 6.8 cm          b. 10 cm          c. 16 cm           d. 30 cm

12. If a wave from one slit of a Young's double slit experiment arrives at a point on the screen one-half wavelength behind the wave from the other slit, which is observed at that point?

a. bright fringe            b. dark fringe  c. gray fringe   d. multi-colored fringe

Attachment:- 5_6.zip