Gravitational Waves and Their Detection

What event led to the creation of gravitational waves detected on Earth?

• The formation of a new galaxy

• The explosion of a supernova

• The merger of two black holes

• The collision of two stars

What was the energy released by the gravitational waves compared to the observable universe?

• Equal to the energy of a supernova

• Less than the energy of a single star

• 50 times greater than the energy of the observable universe

• Twice the energy of the observable universe

Why is it challenging to detect gravitational waves?

• They cause tiny changes in space-time

• They occur very frequently

• They are extremely large

• They are visible only in certain conditions

What is the length of the arms of the interferometers used in detecting gravitational waves?

• 8 kilometers

• 2 kilometers

• 4 kilometers

• 6 kilometers

What is the purpose of using lasers in gravitational wave detection?

• To amplify the gravitational waves

• To measure interference of light waves

• To stabilize the detectors

• To create gravitational waves

What is the wavelength of the best lasers used for detecting gravitational waves?

• 850 nanometers

• 1064 nanometers

• 1200 nanometers

• 532 nanometers

What is the significance of maintaining a vacuum in the detection process?

• To enhance the gravitational waves

• To cool down the detectors

• To increase the speed of light

• To prevent air from interfering with the light

How long did it take to achieve the necessary vacuum conditions for detection?

• 40 days

• 10 days

• 20 days

• 30 days

How does quantum mechanics limit the sensitivity of gravitational wave detectors?

• By increasing the noise in the system

• By limiting the precision of measurements

• By altering the wavelength of light

• By changing the speed of gravitational waves

What future potential does the detection of gravitational waves hold?

• Increasing the speed of light

• Eliminating quantum noise

• Creating new gravitational waves

• Detecting all black holes in the universe