GAT Subject Test (Physics)

National Testing Service Pakistan

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Electric displacement current through a surface S is by definition proportional to the


Classical mechanics explains how _______ moves.


Florence Nightingale was ___ in the development of modern medicine, ___ such practices as sanitization of hospital wards and isolation of actively infected patients.


His habit of spending more than he earned left him in a state of perpetual------ but he------------hoping to see a more affluent day


Known for his commitment to numerous worthy causes, the philanthropist deserved------ for his-----------


You should --------this paragraph in order to make your essay more-----


A------glance pays-----attention to details


Surprisingly enough, it is more difficult to write about the--------than about the---and strange.


A-----response is one that is made with----------.


3. A----is a-------.


Consumption of red meat has ____ because its fat content has become a worrisome and ____ matter.


It takes ____ character to ____ the extremities of the arctic region.


Throughout the animal kingdom, ____ bigger than the elephant.


The Net Magnetic flux from any closed surface is


Although its publicity has been ___, the film itself is intelligent, well-acted, handsomely produced and altogether ___


The Inuit natives of Alaska's North Slope worry that ___ oil exploration might ___their sensitive natural environment.


In the given sentence, identify the gerund phrase: "Running marathons in extreme weather conditions requires immense determination and endurance."


Identify the logical fallacy in the following argument: "I've never seen a black swan; therefore, black swans do not exist."


Choose the word that best completes the analogy: Adorn: Decorate :: _______ : Amass


Which of the following statements about the Heisenberg Uncertainty Principle is correct?


In the context of quantum mechanics, what does the term "wavefunction collapse" refer to?


What is the physical significance of the commutator of the position and momentum operators in Quantum Mechanics?


What is the purpose of the wave function renormalization in Quantum Field Theory?


A beam of particles passes through a Stern-Gerlach apparatus with a magnetic field gradient oriented in the z-direction. What is the effect on the beam?


What is the name of the process by which a particle and its antiparticle annihilate into photons?


A gas is compressed adiabatically from pressure P1 to P2. What is the change in temperature of the gas?


What is the name of the thermodynamic potential that describes a system at constant pressure and temperature?


Which of the following types of electromagnetic radiation has the shortest wavelength?


What is the approximate surface temperature of the Sun?


Which of the following is a remnant of a massive star that has undergone a supernova explosion?


What is the name of the boundary surrounding a black hole beyond which nothing, not even light, can escape?


What is the primary source of energy generation in main-sequence stars like the Sun?


Which phenomenon describes the bending of light around a massive object due to gravity?


Which quantum number specifies the shape of an atomic orbital?


Which of the following transitions in the hydrogen atom results in the emission of the highest energy photon?


Which of the following particles is emitted during beta-minus decay?


Which nuclear reaction is responsible for the energy production in the Sun and other stars?


What is the fundamental force responsible for binding protons and neutrons together in the nucleus?


When a helium atom loses an electron, it becomes:


Beta ray emitted by a radioactive substance is:


An electric charge in uniform motion produces:


What is emitted by a hot metal filament in a cathode ray tube?


If the mass of the bob of a pendulum is doubled its time period is:


The center of Newton rings is dark due to


Resistance in RC circuit of time constant 2 seconds is 1000 Ohms. What is the value of C in the circuit?


The Lenz’s law refers to induced __________


For atomic hydrogen spectrum, which of the following series lies in visible region of electromagnetic spectrum?


__________ are the particles that experience strong nuclear force.


The vertical velocity of ball thrown upward __________ with time.


Tuning of the radio is the best example of electrical __________


Which of the following lights travels the fastest in optical fibres?


What is the speed of light in a vacuum?


According to Einstein's theory, what happens to time as an object approaches the speed of light?


What is the principle of relativity?


What does E=mc? represent?


What happens to an object's mass as it approaches the speed of light?


What is time dilation?


If two observers are moving relative to each other, what do they see regarding each other's clocks?


What is length contraction?


In special relativity, what is an inertial frame?


What is simultaneity in special relativity?


How does gravity affect light according to general relativity?


What is the Lorentz factor?


How does special relativity affect our understanding of space and time?


What happens to an observer's perception of distance as they approach light speed?


What does "rest mass" refer to?


How does special relativity explain why nothing can travel faster than light?


In special relativity, what happens during collisions at relativistic speeds?


What role does simultaneity play in understanding events in different frames?