Question

II. Give difference between
a. Uniform motion/Non uniform motion
B Plant fibre Animal fibres
C Concave lens Convex lens​

Answer 1

Explanation:

hey mate ..

uniform.

when a object rotates in same distance with same velocity..

non uniform

when a object rotates in same distance but in a different velocity..

plant fibre ..

the fibres that r extracted from plants and contains chlorophyll.

animal fibre

the fibres that r extracted from animals.. and not contains chlorophyll..

concave .. eg.. shaving mirror..(converging mirror)

convex ..eg.. vehicle mirror.. (diverging mirror)

Answer 2

Answer:

a) uniform motion:

when an object covers equal distances in equal interval of time in the same direction it is said to have uniform motion or uniform velocity.

non uniform motion:

there are many scenarios for a non uniform motion.

scenario 1: when an object covers an equal distances in equal intervals of time in a given direction.

scenario 2: when an object covers equal distance in equal interval of time but its direction keeps on changing.

scenario 3: when an object covers an equal distance in equal interval of time and its direction also keeps on changing.

c) convex mirrors: they have a reflecting surface that bulges outwards that is they have the outer bend as the reflecting surface.

concave mirrors: they have a reflecting surface that is called in words that is it has its inner bend as a reflecting surface.

Explanation:

sorry but I don't know the answer to the b part