Meet the Other Phone. A phone that grows with your child.

Meet the Other Phone.
A phone that grows with your child.

Buy now

Please or to access all these features

Chat

Join the discussion and chat with other Mumsnetters about everyday life, relationships and parenting.

Physics question eek! and maybe dentists

8 replies

Serena1977 · 04/03/2022 20:29

I've got myself confused!

when we look in a concave part of a spoon (the back bowled bit) our image is upside down so when a dentist looks in the mouth with that concave mirror on a stick, does that mean our teeth are upside down?

Please tell me about concave and convex mirrors!

OP posts:
AndSoFinally · 04/03/2022 20:32

I think it's the other way round? Convex sticks out and concave sticks in?

AndSoFinally · 04/03/2022 20:35

Like this:

Physics question eek! and maybe dentists
RobinHumphries · 04/03/2022 20:35

I use a plane mirror.

Interested in this thread?

Then you might like threads about this subject:

SwissCheeseRentedChildren · 04/03/2022 20:35

Isn’t a dentist’s mirror just flat?

toothgenie · 04/03/2022 20:37

Dental mirrors are flat.

EatSleepReplete · 04/03/2022 20:38

Dead easy to remember OP, the concave side goes inwards, like a cave.

And I always thought a dentist mirror was flat.

user1471530109 · 04/03/2022 20:39

Dentists don't tend to stick spoon shaped mirrors into mouths Grin.

And pp is correct. Concave is the but that goes in.

Choppies · 04/03/2022 20:39

Yeah dental mirrors are flat

Left and right are backwards though hahahaha!

Concave is the one that goes in - like cave or cavity

New posts on this thread. Refresh page