Related Questions

The position of the earth in its orbit, when it is at its greatest distance from the Sun causing summer in the Northern hemisphere is ________
A Perihelion
B Aphelion
C Perigee
D Apogee
________ is the time taken by the Earth to return to a given point in its orbit with reference to a fixed star.
A Lunar year
B Sidereal year
C Solar year
D Tropical year
Due to perturbation of the orbit, satellite orbit parameters are frequently updated on measurements carried out by its
A Six ground stations
B Five ground stations
C Four ground stations
D Three ground stations
The polar orbit scans the whole earth ............. around the earth's poles
A staying
B stayed
C stays
D none
The imaginary axis at which the earth rotates remains inclined at an angle of ____ to the plane of earth's orbit.
A 441/2
B 551/2
C 661/2
D 0
পৃথিবী পৃষ্ঠে একটি ইটের ওজন 81 N. পৃথিবীর অর্ধেক বাসার্ধের সমান উচ্চতায় এবং অর্ধেক বাসার্ধের সমান গভীরতায় ইউটির উপরে পৃথিবীর অভিকর্ষ বলের মান কত হবে?(A brick weighs 81 N on the surface of the earth. What are the earth's gravitational forces act on it at a height of half of the radius of the earth and at a depth of half of the radius of earth, respectively?)
A 36 N and 81 N
B 36 N and 40.5 N
C 36 N and 20.25 N
D 98 and 40.5 N
E 81 N and 81 N
‘The Anthropologist is the Astronomer or the Social Science’- উক্তিটি কোন সংস্থার?
A UNESCO
B UNICEF
C UNFPA
D UNHCR
Galileo was an Italian Astronomer who
A Discovered 4 satellites of Mars
B Developed the Telescope
C Discovered that the movement of pendulum produces a regular time measurement
D Both B & C
A great astronomer and mathematician during the Gupta period was
A Bhanugupta
B Vagabhatta
C Aryabhatta
D Varahamihira
The Arab scholar/astronomer who studied Sanskrit and Astronomy for a decade at Varanasi?
A Alberuni
B Saddat Khan
C Daiva Alzajira
D None of these

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