Which type of telescope is primarily used to observe distant galaxies?
a) Radio telescope
b) Optical telescope
c) X-ray telescope
d) Infrared telescope
Which astrophysical phenomenon is used in GPS technology?
a) Black holes
b) Pulsars
c) General relativity
d) Cosmic microwave background radiation
What is the primary method used to detect exoplanets?
a) Direct imaging
b) Transit method
c) X-ray diffraction
d) Cosmic ray detection
Which branch of astrophysics is concerned with the origin and evolution of the universe?
a) Stellar physics
b) Cosmology
c) Astrobiology
d) Planetary science
Which space observatory is designed to detect infrared radiation?
a) Hubble Space Telescope
b) Chandra X-ray Observatory
c) James Webb Space Telescope
d) Arecibo Observatory
Which astrophysical concept is crucial for nuclear fusion in stars?
a) Quantum entanglement
b) Gravitational lensing
c) Proton-proton chain
d) Blackbody radiation
Which cosmic phenomenon provides evidence for dark matter?
a) Supernova explosions
b) Gravitational lensing
c) Cosmic rays
d) Solar flares
Which astrophysical theory explains the expanding universe?
a) Steady-state theory
b) Big Bang theory
c) String theory
d) Quantum gravity
What is the primary purpose of the Large Hadron Collider in astrophysics?
a) Studying black holes
b) Detecting gravitational waves
c) Recreating conditions of the early universe
d) Observing supernova remnants
Which space probe provided the first detailed images of Pluto?
a) Voyager 1
b) New Horizons
c) Cassini
d) Juno
Which astrophysical tool is used to study the composition of distant stars?
a) Spectroscopy
b) Radiometry
c) Thermography
d) Doppler radar
What is the primary purpose of radio telescopes?
a) Detecting visible light
b) Capturing X-rays
c) Observing cosmic microwave background radiation
d) Measuring planetary motion
Which astrophysical concept is applied in the study of gravitational waves?
a) Special relativity
b) General relativity
c) Quantum mechanics
d) Thermodynamics
Which element was first detected in the Sun before being found on Earth?
a) Hydrogen
b) Helium
c) Oxygen
d) Carbon
Which of the following best explains why black holes are invisible?
a) They emit too much light
b) Their gravity is too weak
c) They absorb all light
d) They only exist in theory
Which cosmic event produces the heaviest elements in the universe?
a) Supernova explosions
b) Solar flares
c) Cosmic ray collisions
d) Planetary formation
Which astrophysical discovery confirmed the existence of gravitational waves?
a) Hubble’s Law
b) LIGO experiment
c) Kepler’s Laws
d) Cosmic inflation theory
Which force prevents a star from collapsing under its own gravity?
a) Electromagnetic force
b) Nuclear force
c) Radiation pressure
d) Dark energy
Which technique is used to determine the distance of nearby stars?
a) Redshift measurement
b) Parallax method
c) X-ray diffraction
d) Gravitational lensing
Which property of light shifts due to the expansion of the universe?
a) Intensity
b) Speed
c) Wavelength
d) Frequency
Which astrophysical phenomenon allows astronomers to detect exoplanet atmospheres?
a) Neutrino oscillations
b) Gravitational waves
c) Transit spectroscopy
d) Supernova explosions
What is the significance of cosmic microwave background radiation?
a) It proves the existence of dark matter
b) It provides evidence for the Big Bang
c) It determines the motion of galaxies
d) It is used to detect black holes
Which astrophysical event led to the formation of our solar system?
a) Supernova explosion
b) Neutron star merger
c) Cosmic ray burst
d) Galactic collision
Which method is commonly used to search for intelligent extraterrestrial life?
a) Spectroscopy
b) Neutrino detection
c) SETI radio signals
d) Cosmic ray analysis
Which planet in our solar system has the strongest magnetic field?
a) Earth
b) Jupiter
c) Mars
d) Venus
Which astronomical event is used to study the Sun’s outer atmosphere?
a) Supernova explosion
b) Solar eclipse
c) Meteor shower
d) Pulsar emission
Which astrophysical principle explains why the universe is mostly hydrogen and helium?
a) Cosmic inflation
b) Nucleosynthesis
c) Gravitational redshift
d) Hawking radiation
Which planet is known for its extreme greenhouse effect?
a) Mars
b) Venus
c) Jupiter
d) Saturn
Which theory suggests that the universe has no beginning or end?
a) Big Bang Theory
b) Steady-State Theory
c) String Theory
d) Quantum Gravity Theory
