Geo-stationary Satellite, Polar Satellite & Uses, Gravitation (Physics) Video Lecture - Class 11

hello students today we are going to
discuss about geostationary satellite
a satellite whose time period is 24
hours and is revolving in an orbit which
is coplanar with the equatorial plane a
satellite
whose time period
is 24 hours
and its revolving
in an orbit
which is coplanar with the equatorial
plane
East or geostationary satellite
dasari aproveitar key its time period of
the Aleutian is 24 hours it means its
time period is equal to the time period
of Earth father will be dissipated mm
could satellite menacing to would you
satellite a bow continuously was part
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m- satellite established us to it
remains always in front of india so time
period should be 24 hours because their
time period of earth is 24 hours to
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immersive think he liked this is anna
and
india
the revolution for the India will be
situated in front of this let this is
the satellite
it always remains in front of this
portion and its time period is 24 hours
because the time period of work is also
24 so it covers the path mode it covers
the more distance in 24 hours so it's a
speed remains greater in comparison to
the earth revolution because this is all
right this is H here we can see that it
is smaller smaller preferred the large
classes h is the height of satellite
from the earth we can calculate the
height of geostationary satellite
I
you're stationary satellite we know that
the time period of satellite t is equal
to 25 smaller circumference upon the
speed of satellite that is V 0 and 2 pi
r upon through GM upon smaller that is 2
PI R extra power 3 by 2 because root me
GRA or / BR t 1 power to hear power will
be 3 by 2 e.r for Talladega and we know
that 2d msg r square because small g is
equal to GM upon r square so good
calcium is gr square so T will be equal
to 2 pi r plus X raise to the power 3 by
2
pretty cool ers flat
root G
into R to R plus H 2 s to the power 3 by
2 will be equal to t to go to G R
divided by 2 pi + r + h cube equal to
square t square g r square upon 45
square then r + h2 brutalizing t square
g r square upon 4 pie square x to the
power 1 by 3 so the height of satellite
will be t square g r square upon 4 pie
square
rest to the power 1 by 3 minus capital R
it is radius R took the radius so that H
will be equal to t 24 into 16 to 64
square g 9.8 they take apart a 6.4 into
10 raised to the power 6 4 square for
into three point one four four square
minus 6.4 into 10 to the power t and
after calculation we get h is
approximately thirty-six thousand kilo
meter on c 6 into 10 raised to the power
6 meter it is the approximate height of
geostationary satellite
the velocity
geostationary satellite
given by v-0 is equal to 3.0 and pillow
meet third person
now come to the polar satellite
a satellite date removes in a polar
orbit
in a polar orbit
is called a for exactly
the revelatory plan
of this satellite
remains perpendicular
perpendicular to that
equator plane or equatorial eight line
could be getting
it is perpendicular to the equatorial
plane of the earth the parlor satellites
successively passes across the different
parts of the Earth's are surface does
the polar satellite eventually scan the
entire surface of the earth example of
polar satellite our European spot and
the Indian earth the sauce is satellite
iers seem to polar satellite or they
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it remains its plan remains
perpendicular to the equatorial plane
uses a polar satellite
first uses
to check the weather condition
weather and environmental monitoring
to take the weather and environmental
conditions they provide more reliable
information
then
geostationary
satellites second uses they are used in
spying work for military purpose
third is British polar satellite first
detected for in the ozone layer
first detected
hole in the ozone layer
they are used to study topography of
moon venus in mass
of moon mark
and Venus