Question

please answer these questions,.....

1.We cannot see things in a dark room. Why?

2.The word 'AMBULANCE is written in mirror writing on ambulances. Explain.

3.Concave mirrors are used to make solar heating panels. Give reasons.

4.The letters on this page appear black. Explain​

Answer 1

1) there is no light in the dark room.

2)on ambulance the word "Ambulance"is written in"ecanlubmA" so due lateral direction it is seen on the mirror ambulance.

3)concave mirror always converges the light fall on it.

4)which page

Mark me as Brainlest

Answer 2

Answer:

1.In a dark room where there is no light, even if there are objects, it won't return any light our eyes due to lack of source of light. Hence we cannot see anything in a dark room. We can see any object,when the light reflected by that object reaches our eyes.

2.To make AMBULANCE easier read for vehicles in front of the ambulance. ... The most common modern usage of mirror writing can be found on the front of ambulances, where the word "AMBULANCE" is often written in very large mirrored text, so that drivers see the word the right way around in their rear-view mirror.

3.Concave Mirrors are used in the solar devices like Solar Cooker, Solar Furnace etc. because they are the only mirror which reflects the light towards the focus (Plane mirrors don't have focus, convex mirrors have imaginary focus behind the mirror which reflects light away from the focus ).

4.In the visible spectrum, black is the absorption of all colors. Black can be defined as the visual impression experienced when no visible light reaches the eye. ... If appropriate proportions of three primary pigments are mixed, the result reflects so little light as to be called "black".

Explanation:

HOPE IT HELPS..

MARK BE AS BRAINLIEST..

FOLLOW ME..

PLEASE..PLEASE..PLEASE..PLEASE...PLEASE..