Merlin plans to fix a door for two new cabins in her office. She wants a see-through
door for cabin A and a translucent door for cabin B. Suggest a suitable material
for each of the doors and give reasons for your suggestions
Answers
Let the screen on which the shadow is being projected be fixed and so the source of light. The only thing which can be moved is the object.
So, now experiment , you will observe that the lesser the distance between object and source the the bigger the shadow gets.
The lesser the distance between object and source bigger gets the shadow.
1. The word “translucent” is of Latin origin and stems from the roots “trans” (which means through) and “lucere” (which means to shine). The term “translucere” in Latin, then, refers to an object which allows light to shine through it, but not to pass through it unobstructed. My favorite examples of translucent objects are wax paper or frosted glass like one might find in a shower.
2. Yes,I agree with the suggestion Because,
• The normal glass is transparent. That's why, the light rays can easily go through the normal glass.
• Unlike,the normal glass,the frosted glass is translucent. And that's why,the incoming light rays are scattered by the external surface of the frosted glass.
• In this way, the amount of the light rays that passes through the frosted glass is very less than the amount of light rays that passes through the normal glass.
• That's why, use of frosted glass is always right if someone wants to block the incoming light rays.