light optics

Page 506

2. an oscillating electric field and an oscillating magnetic field

3. The image obtained is virtual. The image is laterally inverted.

4.the angle of incidence is always equal to the angle of reflection for small angles.

5. a)light emitted by a substance without combustion or perceptible heat.

     b)The process of flow of electric charge from one body to another body

     c)the emission of light from a substance caused by rubbing, scratching, or similar frictional contact.

6. Radio waves have photons with the lowest energies. Microwaves have a little more energy than radio waves. Infrared has still more, followed by visible, ultraviolet, X-rays and gamma rays.

7. SCISYHP

9.After reflection, the light rays diverge; subsequently they will never intersect on the object side of the mirror.

Page 542 #2,3,4,5,6,8,12

2.  The light will bend towrads the normal if the 2 material is more dense than the first material. The light will bend away from the normal if the second material is less dense than the first material.

3. The light will bend toward the normal.

4. 1.00 because it is the least dense material.

5. the angle of incidence where the angle of refraction is 90°.

6. Diamond

8. When rain and sunlight mix

12. a) they can behave like mirrors because the light will reflect off them.

 Page 508 # 3,7,8,9

3. A

7. Convex

8. Virtual image 

9. A i

 B iv   

 C ii

 D iii 

 E v