Question

what is meant solar day and how many seconds are there​

Answer 1

56.555 seconds

mean solar day. n. (Astronomy) the time between two successive passages of the mean sun across the meridian at noon. It is equal to 24 hours 3 minutes and 56.555 seconds of mean sidereal time.

Answer 2

Answer:

a solar day

a solar day is the time ,it takes for the earth to rotate about it's axis so that the sun appears in the same position in the sky

1Solar day consists of 24 hours

1hr =3600sec

24hr=?

(24)(3600)

=86400sec