Question

if the spherical mirrors were not known to human beings, guess the consequences

Answer 1

if there is no spherical mirror then all use to face a huge problems. if concave mirrors are going to be then we cannot observe the small things as big,the dentis who uses concave mirror to see our teeth would face a huge problem and the men cannot shave there faces properly,the tourch and the vehicles light would not spread properly through out the road and we cannot see the road properly in the dark.
if convex mirror are not going to be then the rare veiw mirrors for our bikes would not be and we would not able to see the vehicles back of us and we cannot use the cc cams. so these sperical mirrors play a key role in our lives.
hope this helps u my frnd.

Answer 2

spherical Mirrors are used by human beings in their daily life. convex Mirrors are used in hospitals, Hotel, stores, Apartments ,Roads, ATMs ,computer monitors ,rear view mirror in vehicles and also in sunglasses.

whereas concave Mirrors are used by ENT specialists dentist to use inner parts of mouth.Car headlights are used to get parallel beam of light.Solar cookers are also made from concave mirrors.So, everywhere we are using these spherical Mirrors.

So, without the spherical Mirrors the life of human beings is miserable.

Hope it helps you!!!!!