How much time does light take to reach us from the sun ?

How much time does light take to reach us from the next nearest star 'Proxima Centauri' ?

A physics teacher asked a student to find how much time does the light take to reach the earth if the distance between the sun and the earth is 150xx10^(6)km ? Teacher also gives an extra input that velocity of light is 3xx10^(8)ms^(-1) . What would be the answer of the student?

A star is 20 light years from the Earth How much time does it take for the light from the star to reach the Earth ?

A metal ball of mass 5 kg falls from a height of 490 m. How much time will it take to reach the ground ?

Light travels at a speed of 3 xx 10^8 m s^(-1) . How long does light take to reach the earth from the sun, which is 1.5 xx 10^11 m away?

A bolldropped from the top of a tower covers a distance 7x in the last second of its journey, where x is the distance coverd int the first second. How much time does it take to reach to ground?.

A body dropped from the top of tower covers a distance 9 x in the last second of its journey, where x is the distance covered in the first second. How much time does it take to reach the ground.