Shadow formation

Q.

The shadow of a colored object is always black.

1. True
2. False

Q.

Paheli observed the shadow of a tree at $8:00AM$, $12:00noon$ and $3:00PM$. Which of the following statements is closest to her observation about the shape and size of the shadow?

1. The shape of the shadow of the tree changes but the size remains the same.

2. The size of the shadow of the tree changes but the shape remains the same.

3. Both the size and shape of the shadow of the tree change.

4. Neither the shape nor the size of the shadow changes.

Q. People cast a shadow on the ground as they walk because they block the light.

1. View
2. Light

Q.

The dark region formed on a screen when light falls on a opaque object is called ___.

1. opaque region

2. transparent region

3. eclipse

4. shadow

Q. Shadow of an object is formed when the object:

1. Allows the light to pass through it
2. Bounces back light
3. Absorbs light
4. Bends light

Q. Which type of objects cannot cast a shadow?

1. Opaque
2. Translucent
3. Transparent
4. Metallic

Q. Which type of objects cannot cast a shadow?

1. Transparent
2. Metallic
3. Opaque
4. Translucent

Q.

What can you say about the edges of a shadow?

1. They are always blurry.

2. They are always sharp.

3. The sharpness is low if the light is from a point source.

4. The sharpness is high if the light is from a point source.

Q.

Which of the following characteristics is not exhibited by the shadow of an object?

1. Right side up

2. Same color as the object

3. Can be formed on a screen

4. Can be bigger than the object

Q.

Three identical towels of red, blue, and green colors are hanging on a clothesline in the sun. What would be the color of the shadows of these towels?

Q. What are the factors that affect the size of a shadow?

1. The colour of the object
2. The distance between the object and the source of light
3. The distance between the object and the screen
4. The size of the opaque object