If earth’s rotational motion increases by 12%, then the relation between a day and hours will be 


(a) 
12 hrs = 1 day 
(b) 
20 hrs = 1 day 
(c) 
21hrs =1 day 
(d) 
None of these 
If earth’s rotational motion increases by 12%, then the relation between a day and hours will be 


(a) 
12 hrs = 1 day 
(b) 
20 hrs = 1 day 
(c) 
21hrs =1 day 
(d) 
None of these 
Earth takes 1 day or 24 hrs. to complete one rotation. Let the time taken to complete one rotation with increased speed be hrs.
Since the time taken is inversely proportional to speed, we have:
100:112:: or
1day = 21 hrs.