Question

calculate the distance travelled by a ray of light in a year. (speed of light=3, 00,000 km/ sec​

Answer 1

Answer:

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Answer 2

► Ｑｕｅｓｔｉｏｎ:-

Calculate the distance travelled by a ray of light in a year.

( speed of light = 3,00,000 km/sec)

►Ｓｏｌｕｔｉｏｎ :-

▪ given-

Time = 1 year

speed of light = 3,00,000 km/sec

▪ To Find-

↠ Distance travelled by the ray of light??

${ \boxed{ \bold{ \red{distance = speed \times time}}}}$

distance = 3,00,000km/sec. × 1 year

⇒ distance = (3,00,000km/sec) × (365 days)

⇒ distance = (3,00,000km/sec) × (365×24hours)

⇒ distance = ( 3,00,000km/sec) × ( 365 × 24 × 60min)

⇒distance = (3,00,000km/sec)× (365×24×60×60sec)

⇒ distance = (3,00,000km/sec) × ( 31536000 sec)

⇒ distance = 9460800000000 km

${ \boxed{ \bold{ \red{distance = 9.4608 \times {10}^{12} km}}}}$