1.

A laser light beamed at themoonthe takes2.56 sto returnafter reflectionat the moon's surface . How much isthe radius of thelunar orbit around the earth ?

Answer»

SOLUTION : `t=2.56s`
`therefore` t = time taken by laser beam to go to the moon = `(t)/(2)`
distance between EARTH and moon
`=d=cxx(t)/(2)`
`=3XX10^(8)xx(2.56)/(2)`
`=3.84xx10^(8)m`.


Discussion

No Comment Found