JEE Physics Work Energy and Power MCQs Set C
Question: A vertical spring with force constant k is fixed on a table. A ball of mass m at a height h above the free upper end of the spring falls vertically on the spring so that the spring is compressed by a distance d. The net work done in the…
JEE Physics Work Energy and Power MCQs Set B
Question: A particle of mass m moving eastward with a speed v collides with another particle of the same mass moving northwards with same speed v. The two particles coalesce on collision. The new particle of mass 2m will move with velocity a) b…
JEE Physics Work Energy and Power MCQs Set A
Question: a) –8 J b) +8 J c) –4 J d) +4 J Answer: –8 J Question: a) 25 J b) –50 J c) – 15 J d) 15 J Answer: 25 J Question: If 250 J of work is done in sliding a 5 kg block up an inclined plane of height 4…
JEE Physics Waves MCQs Set B
Question: In a closed organ pipe of length 105 cm, standing waves are set up corresponding to third overtone. What distance from the closed end, a pressure node is formed? a) 15 cm b) 25 cm c) 30 cm d) 5 cm Answer: 15 cm Question:…
JEE Physics Waves MCQs Set A
Question: Which of the following phenomenon cannot take place with sound waves? a) Polarisation b) Refraction c) Diffraction d) Reflection Answer: Polarisation Question: The speed of sound in air is independent from its a) All of these b)…
JEE Physics Wave Optics MCQs Set B
Question: In Young's double slit experiment, when two light waves form third minimum, they have a) b) c) d) Answer: Question: To observerve diffraction the size of an obstacle a) Should be of the same order…
JEE Physics Wave Optics MCQs Set A
Question: Huygens' concepts of secondary wavelets a) Are a geometrical method to find a wavefront b) Allow us to find the focal length of a thin lens c) Give the magnifying power of a microscope d) Are used to determine the velocity of light…
JEE Physics Units and Measurements MCQs Set C
Question: Which pair do not have equal dimensions? a) Force and impulse b) Elastic modulus and pressure c) Energy and torque d) Angular momentum and Planck’s constant Answer: Force and impulse Question: The dimensions of Planck’s constant…
JEE Physics Units and Measurements MCQs Set B
Question: If the buoyant force F acting on an object depends on its volume V immersed in a liquid, the density ρ of the liquid and the acceleration due to gravity g. The correct expression for F can be a) b) c) d) Answer:…
JEE Physics Units and Measurements MCQs Set A
Question: The base quantity among the following is a) Length b) Area c) Speed Answer: Length Question: Which of the following is not a unit of time? a) Light year b) Hour c) Minute Answer: Light year Question: One astronomical…
JEE Physics Thermodynamics MCQs Set C
Question: a) 1000 J b) Zero c) –2000 J d) 2000 J Answer: 1000 J Question: a) b) c) Cannot be predicted d) None of these Answer: Question: One mole of an ideal gas goes from an initial state A to final…
JEE Physics Thermodynamics MCQs Set B
Question: In a Carnot engine, when heat is absorbed from the source, temperature of source a) Remains constant b) Increases c) Decreases d) Cannot say Answer: Remains constant Question: Carnot engine working between 300 K and 600 K has a work…
JEE Physics Thermodynamics MCQs Set A
Question: In thermodynamics the Zeroth law is related to a) Thermal equilibrium b) Entropy c) Diffusion d) Work done Answer: Thermal equilibrium Question: For a cyclic process a) b) c) W = 0 d) None of these Answer: …
JEE Physics Thermal Properties Of Matter MCQs Set B
Question: a) b) c) d) Answer: Question: Gravitational force is required for a) Convection b) Conduction c) Radiation d) Stirring of liquid Answer: Convection Question: Which of the following processes is…