Page 1 :
Question 1., , Suppose you are in a dark room. Can you see, objects in the room? Can you see objects, out-side the room? Explain., , Answer:, , When we are in a dark room then we cannot, see objects in the room. We can see the, objects outside the room, because out of the, room the light is available and the rays of light, can enter our eyes after reflection from the, objects.

Page 2 :
Question 2., , Differentiate between regular and diffused, , reflection. Does diffused reflection mean the, , failure of the laws of reflection?, , Answer:, , Regular Reflection, , (i) All the reflected, , rays are parallel., , (ii) It occurs on a, smooth and polished, , surface., , (iii) Reflected rays are, , in one direction., , , , , , Diffused Reflection, , (i) The reflected, rays are not, , parallel., , (ii) lt occurs on the, , rough surface., , (iii) Reflected rays, are scattered in, , different directions.

Page 3 :
Regular Reflection, , (i) All the reflected, , rays are parallel., , (ii) lt occurs on a, smooth and polished, , surface., , (iii) Reflected rays are, , in one direction., , , , , , Diffused Reflection, , (i) The reflected, rays are not, , parallel., , (ii) It occurs on the, , rough surface., , (iii) Reflected rays, are scattered in, , different directions., , No, diffuse reflection doesn’t mean the failure, , of laws of reflection.

Page 4 :
Question 3., , Mention against each of the following, whether regular or diffused reflection will take, place when a beam of light strikes. Justify, your answer in each case., , 1. Polished wooden table, , 2. Chalk powder, , 3. Cardboard surface, , 4. Marble floor with water spread over it, 9. Mirror, , 6. Piece of paper

Page 5 :
Answer:, , 1. Regular reflection will take place, because the surface is plane and, polished., , 2. Diffused reflection will take place, because the surface is rough., , 3. Diffused reflection will take place, because the surface is rough., , 4. Regular reflection will take place, because the surface is smooth and, plane., , 5. Regular reflection will take place, because the surface is plane and, polished., , 6. Diffused reflection will take place, because the surface is rough.