NCERT PRACTICE QUESTIONS
1. Rearrange the boxes given below to make a sentence that helps us understand opaque objects.
Ans. - Opaque objects make shadows.
2. Classify the objects or materials given below as opaque, transparent or translucent and luminous or non-luminous:
Air, water, a piece of rock, a sheet of aluminum, a mirror, a wooden board, a sheet of polythene, a CD, smoke, a sheet of plane glass, fog, a piece of red hot iron, an umbrella, a lighted fluorescent tube, a wall, a sheet of carbon paper, the flame of a gas burner, a sheet of cardboard, a lighted torch, a sheet of cellophane, a wire mesh, kerosene stove, sun, firefly, the moon.
3. Can you think of creating a shape that would give a circular shadow if held in one way and a rectangular shadow if held in another way?
Ans. - Yes
4. In a completely dark room, if you hold up a mirror in front of you, will you see a reflection of yourself in the mirror?
Ans. - No, in a dark room, a mirror reflection of the image will not be formed as the light will not fall on the mirror and thus no reflection will occur.
Junior Science Topic - Light, Shadow And Reflection. Chapter notes, video lectures, power point presentation and NCERT exercise solution. (Class VI, CBSE syllabus, chapter 11)
By - EduPorm India - The Educational Platform
.png)
 By - EduPorm India - The Educational Platform){kind=link}