Question

(iv) 20 longitudes will face
(b) To calculate the difference between the
local times of any two places on the
earth.
(i) the noon time at both the places
should be known
(ii) the difference in degrees of their
longitudes should be known
(ii) the difference in standard times of
both the places should be known​

Answer 1

Explanation:

sentence by selecting the correct option:

(a) The earth requires 24 hours for one rotation. In one hour,

(i) 5 longitudes will face the sun

(ii) 10 longitudes will face the sun

(iii) 15 longitudes will face the sun

(iv) 20 longitudes will face the sun

Ans. (iii) As the earth rotates in 360 degrees it will take about 15 longitudes to rotate around the sun.

Therefore, 360 degree / 24 = 15.

(b) To calculate the difference between the local times of any two places on the earth

(i) the noon time at both the places should be known

(ii) the difference in degrees of their longitudes should be known

(iii) the difference in standard times of both the places should be known

(iv) Changes need to be made according to International Date Line

Ans. (ii) the difference in degrees of their longitudes should be known

Hence, if we know how many longitudes lie in between two places. We can add 4 that may times and find out the differences between the local times of those two places under consideration....