Question

2. Which of these is not a natural source of light?
aAstar
d. The sun
b. Firefly
C. Tubelight

3. Pick out the opaque material from the following.
a. Grass
d. Clean water
b. Air
c Clear glass

4. Which of these is not necessary to form a shadow?
a. The sun
b. A source of light
C. An opaque object
d. A screen or surface

5. A pinhole camera produces a
a. Coloured inverted image
b. Black and white inverted image
c. Coloured upright image
d. Black and white upright image

6. Which of these is not a source of light?
d. A book
a. A star
b. A lit light bulb

7. Which of these is transparent?
a. Butter paper
d. A mirror
b. Pure air
8. When we look at an object through a translucent material
a. We can see it very clearly
b. Can not see it at all
c. We can see it, but not very clearly
d. We can see its image

9. The shadow of an object shows its
a Size
d. All of these
b. Colour
C. Shape or outline

10. Unlike its shadow, the image of an object shows its
a. outline
b. shape
C. colour
d. none of these
C. A lit candle
C. Mud​

Answer 1

Answer:

2 C tubelight

3 A grass

4 A the sun

5 b. Black and white inverted image

6 A book

7 B Pure air

8 c. We can see it, but not very clearly

9 C. Shape or outline

10 colour

Answer 2

$\huge\mathcal\green{Here's\: The \: ANSWER}$

1. Which of these is not a natural source of light?

• TUBELIGHT

2. Pick out the opaque material from the following.

• GRASS

3. Which of these is not necessary to form a shadow?

• A SCREEN OR SURFACE

4. A pinhole camera produces

• Coloured inverted image

5. Which of these is not a source of light?

• A BOOK

6. Which of these is transparent?

• PURE AIR

7. When we look at an object through a translucent material

• . WE CAN SEE IT, BUT NOT VERY CLEARLY

8. The shadow of an object shows its

• SHAPE OR OUTLINE

9. Unlike its shadow, the image of an object shows its

• ALL. OF THESE