Question

III. State if the following statements are True or False

1. The emission of light by a living thing is called a shadow.
_______

2. The brightness of light increases with the increase in distance.________

3. When all the rays come together and eventually meet at a point, it is called a divergent beam of light.________

4. The shadow of a body in the morning is smaller than the shadow of it at noon._______

5. If the distance between the screen and the object is increased, the size of the shadow also decreases.______
​

Answer 1

Ansdwer:

gj

Explanation:

Answer 2

True or False -

1) False - Shadow is dark outline of object which is formed due to blocking of light by object.

2)False - There is inverse relationship between distance and brightness of light . As distance increases, the photons of light become spread over a wider area. Hence , intensity of brightness of light decreases.

3) False - It is called as convergent beam of light , divergent bean of light is the opposite of it . In divergent beam of light it starts from one point and goes to different direction.

4) False - At noon the sun is over head so the sunlight fls directly over head so shadows are short . While at morning sun is inclined and sun rays falls at inclined position so shadows are long.

5)False - If we increase the distance between the screen and the object then the amount of light falling on the screen will decreases hence size of the shadow will increases.