Who proposed the theory of general relativity?
(a) Isaac Newton
(b) Albert Einstein
(c) Max Planck
(d) Galileo Galilei
Answer: (b) Albert Einstein
What is the fundamental concept of the theory of relativity?
(a) Time dilation
(b) Space expansion
(c) Quantum entanglement
(d) Planetary motion
Answer: (a) Time dilation
Which of the following is a consequence of special relativity?
(a) Time dilation
(b) Length contraction
(c) Both time dilation and length contraction
(d) Neither time dilation nor length contraction
Answer: (c) Both time dilation and length contraction
According to general relativity, gravity is caused by:
(a) Mass
(b) Charge
(c) Magnetism
(d) Kinetic energy
Answer: (a) Mass
The theory of relativity predicts that the speed of light in a vacuum is:
(a) Variable
(b) Infinite
(c) Constant
(d) Zero
Answer: (c) Constant
What is the relationship between mass and energy according to Einstein’s famous equation, E = mc^2?
(a) Mass is directly proportional to energy
(b) Mass is inversely proportional to energy
(c) Mass and energy are unrelated
(d) Mass is equal to energy
Answer: (a) Mass is directly proportional to energy
In special relativity, time dilation occurs when:
(a) An object moves at a constant speed
(b) An object moves at a high velocity
(c) An object experiences gravity
(d) An object is at rest
Answer: (b) An object moves at a high velocity
According to special relativity, the laws of physics are the same for observers:
(a) In motion relative to each other
(b) At rest relative to each other
(c) Moving at constant velocity
(d) Experiencing acceleration
Answer: (a) In motion relative to each other
What is the name of the famous experiment that provided evidence for time dilation?
(a) Michelson-Morley experiment
(b) Double-slit experiment
(c) Young’s experiment
(d) Hafele-Keating experiment
Answer: (d) Hafele-Keating experiment
The concept that the laws of physics are the same for all observers, regardless of their motion, is known as:
(a) General relativity
(b) Special relativity
(c) Galilean relativity
(d) Lorentz invariance
Answer: (d) Lorentz invariance
Which of the following phenomena is predicted by general relativity?
(a) Gravitational waves
(b) Time travel
(c) Quantum entanglement
(d) Electron tunneling
Answer: (a) Gravitational waves
The concept that the laws of physics should be the same for all observers, regardless of their motion, was first introduced by:
(a) Isaac Newton
(b) Albert Einstein
(c) Galileo Galilei
(d) Max Planck
Answer: (c) Galileo Galilei
What is the name of the thought experiment commonly used to explain the concepts of time dilation and length contraction in special relativity?
(a) Einstein’s elevator
(b) Schrödinger’s cat
(c) Maxwell’s demon
(d) Twin paradox
Answer: (d) Twin paradox
According to special relativity, as an object’s velocity approaches the speed of light:
(a) Its mass increases
(b) Its length contracts
(c) Its time dilation decreases
(d) Its energy decreases
Answer: (a) Its mass increases
Which of the following is a consequence of general relativity?
(a) Time dilation
(b) Length contraction
(c) Gravitational lensing
(d) Mass-energy equivalence
Answer: (c) Gravitational lensing
The bending of light as it passes through a gravitational field is known as:
(a) Gravitational redshift
(b) Gravitational lensing
(c) Time dilation
(d) Length contraction
Answer: (b) Gravitational lensing
The phenomenon in which time appears to pass slower for a moving observer compared to a stationary observer is called:
(a) Time dilation
(b) Length contraction
(c) Mass-energy equivalence
(d) Gravitational time dilation
Answer: (a) Time dilation
Which of the following statements is true about the twin paradox?
(a) The twin who stays on Earth ages more slowly than the traveling twin
(b) The traveling twin ages more slowly than the twin who stays on Earth
(c) Both twins age at the same rate
(d) The twin paradox is not related to time dilation
Answer: (b) The traveling twin ages more slowly than the twin who stays on Earth
What is the name of the boundary beyond which no information or matter can escape from a black hole?
(a) Event horizon
(b) Singularity
(c) Ergosphere
(d) Photon sphere
Answer: (a) Event horizon
Which of the following phenomena can be explained by general relativity?
(a) Gravitational time dilation
(b) Frame dragging
(c) Gravitational waves
(d) All of the above
Answer: (d) All of the above
According to special relativity, an object’s mass:
(a) Increases with velocity
(b) Decreases with velocity
(c) Remains constant regardless of velocity
(d) Depends on the observer’s frame of reference
Answer: (c) Remains constant regardless of velocity
Which of the following statements is true about the speed of light?
(a) It is the fastest possible speed in the universe
(b) It is faster than the speed of sound
(c) It is slower than the speed of sound
(d) It depends on the wavelength of light
Answer: (a) It is the fastest possible speed in the universe
What is the name of the effect in which clocks closer to a massive object run slower compared to clocks farther away from the object?
(a) Time dilation
(b) Gravitational redshift
(c) Frame dragging
(d) Equivalence principle
Answer: (a) Time dilation
The principle that states that the laws of physics are the same for all observers in uniform motion is known as:
(a) Principle of relativity
(b) Equivalence principle
(c) Conservation principle
(d) Correspondence principle
Answer: (a) Principle of relativity
Which of the following statements is true about the curvature of spacetime according to general relativity?
(a) It is caused by the presence of matter and energy
(b) It is independent of the presence of matter and energy
(c) It is a result of electromagnetic interactions
(d) It is proportional to the speed of light
Answer: (a) It is caused by the presence of matter and energy
The concept that the laws of physics should appear the same to all observers, regardless of their motion, is known as:
(a) Galilean relativity
(b) Lorentz invariance
(c) Principle of equivalence
(d) Correspondence principle
Answer: (b) Lorentz invariance
What is the name of the effect in which a rotating mass drags spacetime around it, causing nearby objects to be dragged along?
(a) Time dilation
(b) Length contraction
(c) Frame dragging
(d) Gravitational redshift
Answer: (c) Frame dragging
The theory of relativity is primarily concerned with the relationship between:
(a) Space and time
(b) Mass and energy
(c) Force and acceleration
(d) Light and matter
Answer: (a) Space and time
Which of the following is a consequence of the principle of relativity?
(a) Time dilation
(b) Length contraction
(c) Invariance of the speed of light
(d) All of the above
Answer: (d) All of the above
The principle of equivalence is the basis for which theory in physics?
(a) Special relativity
(b) General relativity
(c) Quantum mechanics
(d) Classical mechanics
Answer: (b) General relativity
What is the name of the boundary surrounding a black hole from which light can escape?
(a) Event horizon
(b) Singularity
(c) Ergosphere
(d) Photon sphere
Answer: (d) Photon sphere
According to special relativity, which of the following quantities is relative?
(a) Time
(b) Length
(c) Velocity
(d) All of the above
Answer: (d) All of the above
Which of the following statements is true about the principle of equivalence?
(a) It states that gravity is a fundamental force
(b) It states that gravitational and inertial mass are equivalent
(c) It is the basis for the theory of general relativity
(d) All of the above
Answer: (d) All of the above
According to special relativity, an object’s length contracts in the direction of its motion when:
(a) Its mass increases
(b) It approaches the speed of light
(c) It experiences gravity
(d) It is at rest
Answer: (b) It approaches the speed of light
The phenomenon in which light waves are stretched out as they move away from a massive object is called:
(a) Gravitational time dilation
(b) Gravitational redshift
(c) Gravitational lensing
(d) Frame dragging
Answer: (b) Gravitational redshift
Which of the following is an implication of special relativity for the concept of simultaneity?
(a) Simultaneous events are independent of the observer’s motion
(b) Simultaneous events depend on the observer’s frame of reference
(c) Simultaneous events can never occur
(d) Simultaneous events occur instantaneously
Answer: (b) Simultaneous events depend on the observer’s frame of reference
According to general relativity, what is the source of gravity?
(a) Space curvature
(b) Time dilation
(c) Electromagnetic interactions
(d) Quantum fluctuations
Answer: (a) Space curvature
The concept that the laws of physics should be the same in all reference frames is known as:
(a) Galilean relativity
(b) Lorentz invariance
(c) Principle of equivalence
(d) Correspondence principle
Answer: (a) Galilean relativity
According to special relativity, as an object’s velocity approaches the speed of light:
(a) Its mass increases
(b) Its energy decreases
(c) Its time dilation increases
(d) Its length contracts
Answer: (d) Its length contracts
Which of the following phenomena can be explained by the principle of equivalence in general relativity?
(a) Gravitational time dilation
(b) Gravitational redshift
(c) Gravitational lensing
(d) Frame dragging
Answer: (d) Frame dragging
According to general relativity, the path of a massive object moving near a massive body is influenced by:
(a) Electromagnetic forces
(b) Gravitational forces
(c) Nuclear forces
(d) Quantum forces
Answer: (b) Gravitational forces
What is the name of the point of infinite density at the center of a black hole?
(a) Event horizon
(b) Singularity
(c) Ergosphere
(d) Photon sphere
Answer: (b) Singularity
The concept that the laws of physics should be consistent with those of classical mechanics in the limit of low velocities is known as:
(a) Galilean relativity
(b) Lorentz invariance
(c) Principle of equivalence
(d) Correspondence principle
Answer: (d) Correspondence principle
According to special relativity, which of the following is invariant?
(a) Time interval
(b) Length
(c) Velocity
(d) None of the above
Answer: (a) Time interval
The concept that gravity is indistinguishable from acceleration in a gravitational field is known as:
(a) Galilean relativity
(b) Lorentz invariance
(c) Principle of equivalence
(d) Correspondence principle
Answer: (c) Principle of equivalence
Which of the following is a consequence of general relativity?
(a) Frame dragging
(b) Gravitational waves
(c) Both frame dragging and gravitational waves
(d) Neither frame dragging nor gravitational waves
Answer: (c) Both frame dragging and gravitational waves
According to special relativity, which of the following is true about the time experienced by a moving observer compared to a stationary observer?
(a) The moving observer’s time runs slower
(b) The moving observer’s time runs faster
(c) The moving observer’s time remains the same
(d) The time difference depends on the observer’s acceleration
Answer: (a) The moving observer’s time runs slower
The concept that the laws of physics should be consistent with those of electromagnetism in all reference frames is known as:
(a) Galilean relativity
(b) Lorentz invariance
(c) Principle of equivalence
(d) Correspondence principle
Answer: (b) Lorentz invariance
According to general relativity, the presence of mass and energy causes:
(a) Time dilation
(b) Space curvature
(c) Both time dilation and space curvature
(d) Neither time dilation nor space curvature
Answer: (c) Both time dilation and space curvature
The theory of general relativity expands upon and extends the principles of:
(a) Classical mechanics
(b) Quantum mechanics
(c) Electromagnetism
(d) Special relativity
Answer: (d) Special relativity
Which of the following statements is true about the nature of spacetime in general relativity?
(a) It is flat and Euclidean
(b) It is curved and non-Euclidean
(c) It is composed of discrete particles
(d) It is independent of the presence of matter and energy
Answer: (b) It is curved and non-Euclidean
The concept that the laws of physics should be consistent with those of classical mechanics in the limit of low velocities is known as:
(a) Galilean relativity
(b) Lorentz invariance
(c) Principle of equivalence
(d) Correspondence principle
Answer: (d) Correspondence principle
According to special relativity, which of the following is true about the length of an object moving at a high velocity?
(a) The length increases
(b) The length decreases
(c) The length remains the same
(d) The length depends on the observer’s acceleration
Answer: (b) The length decreases
The concept that the laws of physics should be consistent with those of electromagnetism in all reference frames is known as:
(a) Galilean relativity
(b) Lorentz invariance
(c) Principle of equivalence
(d) Correspondence principle
Answer: (b) Lorentz invariance
According to general relativity, the presence of mass and energy causes:
(a) Time dilation
(b) Space curvature
(c) Both time dilation and space curvature
(d) Neither time dilation nor space curvature
Answer: (c) Both time dilation and space curvature
The theory of general relativity expands upon and extends the principles of:
(a) Classical mechanics
(b) Quantum mechanics
(c) Electromagnetism
(d) Special relativity
Answer: (d) Special relativity
Which of the following statements is true about the nature of spacetime in general relativity?
(a) It is flat and Euclidean
(b) It is curved and non-Euclidean
(c) It is composed of discrete particles
(d) It is independent of the presence of matter and energy
Answer: (b) It is curved and non-Euclidean
According to general relativity, the curvature of spacetime is caused by:
(a) Electromagnetic fields
(b) Quantum fluctuations
(c) The presence of mass and energy
(d) Dark matter
Answer: (c) The presence of mass and energy
Which of the following statements is true about the concept of time in general relativity?
(a) Time is absolute and flows uniformly for all observers
(b) Time is relative and depends on the observer’s frame of reference
(c) Time is an illusion and does not exist in reality
(d) Time is independent of the presence of matter and energy
Answer: (b) Time is relative and depends on the observer’s frame of reference
The concept that the laws of physics should be the same for all observers, regardless of their motion, is known as:
(a) Galilean relativity
(b) Lorentz invariance
(c) Principle of equivalence
(d) Correspondence principle
Answer: (b) Lorentz invariance
According to special relativity, the perception of simultaneity:
(a) Is absolute and independent of the observer’s motion
(b) Is relative and depends on the observer’s frame of reference
(c) Does not exist in reality
(d) Is determined by the speed of light
Answer: (b) Is relative and depends on the observer’s frame of reference
The concept that the laws of physics should be consistent with those of classical mechanics in the limit of low velocities is known as:
(a) Galilean relativity
(b) Lorentz invariance
(c) Principle of equivalence
(d) Correspondence principle
Answer: (d) Correspondence principle
According to special relativity, an object’s length contracts in the direction of its motion when:
(a) Its mass increases
(b) It approaches the speed of light
(c) It experiences gravity
(d) It is at rest
Answer: (b) It approaches the speed of light
The concept that the laws of physics should be consistent with those of electromagnetism in all reference frames is known as:
(a) Galilean relativity
(b) Lorentz invariance
(c) Principle of equivalence
(d) Correspondence principle
Answer: (b) Lorentz invariance
According to general relativity, the presence of mass and energy causes:
(a) Time dilation
(b) Space curvature
(c) Both time dilation and space curvature
(d) Neither time dilation nor space curvature
Answer: (c) Both time dilation and space curvature
The theory of general relativity expands upon and extends the principles of:
(a) Classical mechanics
(b) Quantum mechanics
(c) Electromagnetism
(d) Special relativity
Answer: (d) Special relativity
Which of the following statements is true about the nature of spacetime in general relativity?
(a) It is flat and Euclidean
(b) It is curved and non-Euclidean
(c) It is composed of discrete particles
(d) It is independent of the presence of matter and energy
Answer: (b) It is curved and non-Euclidean
According to general relativity, the curvature of spacetime is caused by:
(a) Electromagnetic fields
(b) Quantum fluctuations
(c) The presence of mass and energy
(d) Dark matter
Answer: (c) The presence of mass and energy
Which of the following statements is true about the concept of time in general relativity?
(a) Time is absolute and flows uniformly for all observers
(b) Time is relative and depends on the observer’s frame of reference
(c) Time is an illusion and does not exist in reality
(d) Time is independent of the presence of matter and energy
Answer: (b) Time is relative and depends on the observer’s frame of reference
The concept that the laws of physics should be the same for all observers, regardless of their motion, is known as:
(a) Galilean relativity
(b) Lorentz invariance
(c) Principle of equivalence
(d) Correspondence principle
Answer: (b) Lorentz invariance
