Question

Topic-: Light
Level-: Institute

A man is at 20 m from a plane mirror. if he move towards the mirror with a speed of 3 m/s, then what will be the distance between image of the man and the actual man after 3 s ?

_______________________

Moderator and Brainly star ✅⭐

✅Answer is below 30​

Answer 1

Answer:

the distance is 5-1

11. If the speed of light is the new unit of speed and year

the new unit of time, then what will be the new unit

of length? What is its name? Given: c = 3 x 10 ms

and 1 year = 3.154 x 107 s.

Ans. 9.46 x 1015 m, 1 light year.m