Light travels with a speed of `3xx10^(8) m s^(-1)`. The distance travelled by light in 1 femto second is

Question

Light travels with a speed of `3xx10^(8) m s^(-1)`. The distance travelled by light in 1 femto second is

Light travels with a speed of `3xx10^(8) m s^(-1)`. The distance travelled by light in 1 femto second is
A. `0*03 mm`
B. `0*003 mm`
C. `3 mm`
D. `0*0003 mm`

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - D
`S=Cxxt=(3xx10^(8)ms^(-1)xx(10^(-15)s)`
`=3xx10^(-7)m`
`=3xx10^(-7)xx10^(3)mm = 3xx10^(-4)mm`
`=0*0003 mm`

5 views Answered 2023-02-05 15:29