#1
Which planet is known as the 'Red Planet'?
#2
What is the primary function of a telescope?
#3
Which of the following is NOT a type of optical telescope?
#4
Who was the first person to use a telescope for astronomical observations?
#5
Which of the following is NOT a type of optical aberration?
#6
What is the phenomenon where a total solar eclipse occurs?
#7
What is the term for the point in an orbit where a satellite is farthest from the Earth?
#8
What does 'AU' stand for in astronomy?
#9
Which optical instrument is used to study the spectra of stars?
#10
Which planet has the most moons in our solar system?
#11
What is the name of the largest optical telescope on Earth?
#12
What is the name of the imaginary line around which Earth rotates?
#13
Which optical instrument is used to measure angles in the sky?
#14
Which type of telescope uses a mirror to gather and focus light?
#15
What is the name of the phenomenon where light bends as it passes through different mediums?
#16
What is the phenomenon where an object's apparent position changes due to the observer's movement called?
#17
What is the name of the effect where light is spread out into its component colors?
#18
Who proposed the heliocentric model of the solar system?
#19