Question

HOW MANY COLOUR ARE THERE TO MEAN RAINBOW .WHAT COLOUR IS USED FOR ANYONE TO IDENTIFY THE CAUTION​

Answer 1

Answer:

There are  7 (seven) colours in a Rainbow.

Explanation:

There should be 7 colours present to mean a rainbow .

namely:

Violet

Indigo

Blue

Green

Yellow

Orange

Red

Yellow = Caution

YELLOW is the colour used to identify the caution .

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Answer 2

Seven colours in rainbow.

The colours of the rainbow are Red, Orange, Yellow, Green, Blue, Indigo and Violet.

{ Note:- VIBGYOR = Violet, Indigo, Blue, Green, Yellow & Orange.}

i hope it helps you.