Ghost

What is the scientific explanation for the phenomenon of 'ghost images' in optics?

• Reflection of light

• Refraction of light

• Diffraction of light

• Interference of light

In the context of quantum mechanics, what is a 'ghost particle'?

• A particle with no mass

• A particle that cannot be detected

• A particle that exists in a superposition

• A hypothetical particle with negative energy

Which of the following scientific instruments can detect 'ghost signals' in electronic circuits?

• Oscilloscope

• Voltmeter

• Ammeter

• Spectrometer

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

In the study of electromagnetism, what is a 'ghost current'?

• A current that flows without resistance

• A current that appears due to a measurement error

• A current that flows in a superconducting material

• A hypothetical current with no charge

What is the role of 'ghost cells' in computational fluid dynamics?

• To simulate boundary conditions

• To increase computational speed

• To reduce numerical errors

• To visualize fluid flow

Tags

NGSS.HS-ETS1-4

In the context of relativity, what is a 'ghost field'?

• A field with imaginary values

• A field that cannot be observed

• A field that affects time dilation

• A hypothetical field with no energy

Which scientific principle explains the appearance of 'ghost images' in photography?

• Double exposure

• Chromatic aberration

• Lens flare

• Parallax error

In the study of acoustics, what is a 'ghost note'?

• A note that is inaudible

• A note that is played but not heard

• A note that is heard but not played

• A note that is played at a frequency beyond human hearing

What is the significance of 'ghost atoms' in molecular simulations?

• To represent atoms that are not part of the simulation

• To simulate interactions with virtual particles

• To account for quantum tunneling effects

• To visualize atomic structures

In the context of computer science, what is a 'ghost process'?

• A process that runs without user intervention

• A process that is terminated but still appears in the process table

• A process that consumes no resources

• A process that is invisible to the operating system