Question

B. True or false?
1. We can see reflections of things on surfaces that reflect light very well.
2. As the distance between an object and the source of light increases,
the shadow of the object becomes bigger.
3. As the distance between the screen and the object increases, the
shadow becomes larger.
4. The sharpness of a shadow depends on the distance of the object
from the screen.
5. Shadows are sharp when the source of light is small​

Answer 1

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$\blue{\underline{\underline{\purple{\mathbb{TRUE \: OR \: FALSE ?:-}}}}}$

1. We can see reflections of things on surfaces that reflect light very well .

➙ True ✔

★ For example : MIRROR . A shiny surface reduces the absorption of light and causes the maximum reflection of light . An object which reflects light well is called mirror . A highly polished and metal object reflects light well and act as a mirror .

2. As the distance between an object and the source of light increases the shadow becomes larger .

➙ True ✔

★ This is because an object closer to the the light source will block a larger area of the light increasing its shadow size .

3. As the distance between the screen and the object increases, the shadow becomes larger.

➙ False ✗

4. The sharpness of a shadow depends on the distance of the object from the screen.

➙ False ✗

5. The sharpness of a shadow depends on the distance of the object from the screen .

➙ True ✔