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The thickness of Milky way Galaxy is 40 ...

The thickness of Milky way Galaxy is 40 Em. It can be expressed in metres as

A

`4.0 xx 10^19 m`

B

`4.0 xx 10^15 m`

C

`4.0 xx 10^18 m`

D

`4.0 xx 10^12 m`

Text Solution

Verified by Experts

The correct Answer is:
A
`1Em = 10^18 m`
Unit factor , 1 ` = (10^18m)/(1Em)`
` 40Em = 40 Em xx ( (10^18m)/(1Em) ) `
`= 40 xx 10^18 m " or " 4.0 xx 10^19 m`
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