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Recent questions in Class-XI-PHYSICS
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The variables like pressure, volume, temperature of a thermodynamic system are microscopic. True or False?
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Oct 4, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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Select the correct statement.
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Oct 4, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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Which law of thermodynamics says that efficiency of a heat engine cannot be 1?
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Oct 4, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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What is a quasi-static process?
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Oct 4, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
physics
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Let T1 be the time period of a single spring mass system on a horizontal surface. Let T2 be the time period of the same system when hung from the ceiling. What is the expression for T1 & T2?
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Oct 4, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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A spring mass system is hanging from the ceiling of a lift. It has been like this for quite some time. Suddenly the cables holding the lift are cut.
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Oct 4, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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A function has the equation Acos3t + Bsin3t. Find the value of time period.
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Oct 4, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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Consider the damped SHM of a spring mass system. If the time taken for the amplitude to become half is ‘T’, what is the time taken for mechanical energy to become half?
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Oct 3, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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The value of gravitational potential inside a uniform thin spherical shell is the same everywhere.
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Oct 3, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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The time period of a satellite is independent of the mass of the satellite.
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Oct 3, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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The escape velocity of an object from the surface of the planet does not depend on the mass of the object.
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Oct 3, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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The time period of a satellite is independent of the mass of the satellite.
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Oct 3, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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The only natural satellite of India is the moon.
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Oct 3, 2021
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cbse
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The PSLV rockets of India launch satellites into the high-earth orbit.
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Oct 3, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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A partially elastic body can never be permanently deformed. True or False?
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Class-XI-PHYSICS
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cbse
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What does the area under the stress-strain curve represent?
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Oct 3, 2021
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cbse
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The SI unit of pressure is _____
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Oct 3, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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Pressure is a vector quantity. True or False?
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Oct 3, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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Velocity has to be the same at the same horizontal level in case of steady laminar flow.
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Oct 3, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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In which of the following conditions can the Bernoulli equation not be used?
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Oct 3, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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Coefficient of viscosity doesn’t depend on temperature because it is a property of the fluid. True or False?
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Oct 3, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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What is the relation between coefficient of area expansion(A) and coefficient of volume expansion(B)?
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Oct 3, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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What should be the temperature of 1g of ice, so that when it’s added to 9g of water, lowers the temperature of water by 10°C?
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Oct 3, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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Melting point depends on pressure. True or False?
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Oct 3, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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What is regelation?
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Oct 3, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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When water is kept in a very hot pan, the entire water heats up. Which mode of heat transfer is responsible for this?
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Oct 3, 2021
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Class-XI-PHYSICS
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Sandeepthukran
cbse
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20J of heat energy is extracted from a cold reservoir when 30J of work is done on a refrigerator. What is the coefficient of the refrigerator?
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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What is the relation between work obtained in an reversible and irreversible process?
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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A particle of mass m starts from the mean position of a SHM, at t=0, and goes towards -A. If the angular frequency of SHM is w, find the force acting on it as a function of time.
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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Consider a particle undergoing an SHM of amplitude A & angular frequency w. What is the magnitude of displacement from the mean position when kinetic energy is equal to the magnitude of potential energy?
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Oct 3, 2021
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Class-XI-PHYSICS
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AdilsonLima
cbse
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