Correct Answer - Option 2 : T → P → M → F → D
The correct answer is T → P → M → F → D.
- The SI unit of length is a metre.
- When a larger distance is to be covered, we cannot use the metre.
-
To cover a larger distance we use km(kilometre), hm (hectometre), and da (decametre). These are called the multiples of Metre.
-
When the distance is smaller, we use Dm (decimetre, cm(centimetre) and mm (millimetre). These are called the submultiples of Metre.
Prefix
|
Symbol
|
Multiple
|
Prefix
|
Symbol
|
Submultiple
|
Yotta
|
Y
|
1024
|
deci
|
d
|
10-1
|
Zetta
|
Z
|
1021
|
centi
|
c
|
10-2
|
Exa
|
E
|
1018
|
milli
|
m
|
10-3
|
Peta
|
P
|
1015
|
micro
|
μ
|
10-6
|
Tera
|
T
|
1012
|
nano
|
n
|
10-9
|
Giga
|
G
|
109
|
pico
|
p
|
10-12
|
Mega
|
M
|
106
|
femto
|
f
|
10-15
|
Kilo
|
k
|
103
|
atto
|
a
|
10-18
|
Hecto
|
h
|
102
|
zepto
|
z
|
10-21
|
Deca
|
da
|
101
|
yocto
|
y
|
10-24
|