Physics Syllabus (JEE Main)

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Q. If a hollow cylinder rolls down an incline, how does its acceleration compare to that of a solid cylinder?
  • A. Hollow cylinder accelerates faster
  • B. Solid cylinder accelerates faster
  • C. Both accelerate equally
  • D. Depends on the angle of incline
Q. If a hollow sphere and a solid sphere of the same mass and radius roll down the same incline, which one reaches the bottom first?
  • A. Hollow sphere
  • B. Solid sphere
  • C. Both reach at the same time
  • D. Depends on the angle of incline
Q. If a hollow sphere rolls down an incline, how does its acceleration compare to that of a solid sphere?
  • A. Greater
  • B. Less
  • C. Equal
  • D. Depends on mass
Q. If a length is measured as 0.0500 m, how many significant figures does it have?
  • A. 2
  • B. 3
  • C. 4
  • D. 5
Q. If a length is measured as 0.0600 m, how many significant figures does it have?
  • A. 2
  • B. 3
  • C. 4
  • D. 5
Q. If a length is measured as 150.0 cm, how many significant figures does it have?
  • A. 2
  • B. 3
  • C. 4
  • D. 5
Q. If a length is measured as 2.5 m, how many centimeters is that?
  • A. 25
  • B. 250
  • C. 2.5
  • D. 2500
Q. If a length is measured as 2.5 m, how many millimeters is that?
  • A. 25
  • B. 250
  • C. 2500
  • D. 25000
Q. If a length is measured as 2.5 m, what is this length in millimeters?
  • A. 25
  • B. 250
  • C. 2500
  • D. 25000
Q. If a length is measured as 25.0 cm, what is the uncertainty in this measurement?
  • A. 0.1 cm
  • B. 0.01 cm
  • C. 1 cm
  • D. 0.5 cm
Q. If a length is measured as 250 m with an error of 5 m, what is the absolute error?
  • A. 5 m
  • B. 0.5 m
  • C. 0.05 m
  • D. 50 m
Q. If a length is measured as 30.0 cm with an uncertainty of ±0.2 cm, what is the maximum possible error?
  • A. 0.1 cm
  • B. 0.2 cm
  • C. 0.3 cm
  • D. 0.4 cm
Q. If a lens forms a real image at a distance of 40 cm from the lens, and the object is placed at 60 cm, what is the focal length of the lens?
  • A. 15 cm
  • B. 20 cm
  • C. 25 cm
  • D. 30 cm
Q. If a lens has a focal length of -20 cm, what type of lens is it?
  • A. Convex lens
  • B. Concave lens
  • C. Biconvex lens
  • D. Biconcave lens
Q. If a lens has a power of -2 D, what is its focal length?
  • A. -50 cm
  • B. -25 cm
  • C. 25 cm
  • D. 50 cm
Q. If a lens has a power of -2 D, what type of lens is it?
  • A. Convex lens
  • B. Concave lens
  • C. Bifocal lens
  • D. Plano-convex lens
Q. If a light ray enters a medium with a refractive index of 1.33 at an angle of 60°, what is the angle of refraction in the medium?
  • A. 30°
  • B. 45°
  • C. 60°
  • D. 75°
Q. If a light ray in a medium with n=1.5 strikes a boundary with n=1.0 at an angle of 70°, what will happen?
  • A. Total internal reflection occurs
  • B. Light refracts into the air
  • C. Light is absorbed
  • D. Light reflects at 70°
Q. If a light ray in diamond (n=2.42) strikes the diamond-air interface at an angle of 70°, will it undergo total internal reflection?
  • A. Yes
  • B. No
  • C. Only if the angle is decreased
  • D. Only if the angle is increased
Q. If a light wave passes through a narrow slit and produces a diffraction pattern, what happens to the intensity of the central maximum compared to the other maxima?
  • A. It is the same
  • B. It is greater
  • C. It is lesser
  • D. It is zero
Q. If a liquid droplet is formed on a surface, what shape does it take due to surface tension?
  • A. Square
  • B. Flat
  • C. Sphere
  • D. Triangle
Q. If a liquid droplet is perfectly spherical, what can be said about the forces acting on it?
  • A. Net force is zero
  • B. Net force is upward
  • C. Net force is downward
  • D. Net force is horizontal
Q. If a liquid has a high surface tension, what can be inferred about its molecular interactions?
  • A. Weak intermolecular forces
  • B. Strong intermolecular forces
  • C. No intermolecular forces
  • D. Only gravitational forces
Q. If a liquid has a surface tension of 0.05 N/m, what is the work done in increasing the surface area by 1 m²?
  • A. 0.05 J
  • B. 0.1 J
  • C. 0.2 J
  • D. 0.5 J
Q. If a long straight conductor carries a current I, what is the magnetic field at a distance r from the wire?
  • A. μ₀I/(2πr)
  • B. μ₀I/(4πr²)
  • C. μ₀I/(2r)
  • D. μ₀I/(πr²)
Q. If a long straight conductor carries a current I, what is the magnetic field B at a distance r from the wire?
  • A. B = μ₀I/(2πr)
  • B. B = μ₀I/(4πr²)
  • C. B = μ₀I/(2r)
  • D. B = μ₀I/(πr²)
Q. If a long straight wire carries a current I, what is the direction of the magnetic field at a point located directly above the wire?
  • A. Towards the wire
  • B. Away from the wire
  • C. Clockwise around the wire
  • D. Counterclockwise around the wire
Q. If a long straight wire carries a current I, what is the magnetic field at a distance r from the wire according to Ampere's Law?
  • A. μ₀I/(2πr)
  • B. μ₀I/(4πr²)
  • C. I/(2πr)
  • D. μ₀I/(r)
Q. If a long straight wire carries a current I, what is the magnetic field at a distance r from the wire according to the Biot-Savart Law?
  • A. μ₀I/(2πr)
  • B. μ₀I/(4πr^2)
  • C. μ₀I/(2r)
  • D. μ₀I/(4πr)
Q. If a long straight wire carries a current I, what is the magnetic field B at a distance r from the wire?
  • A. B = μ₀I/(2πr)
  • B. B = μ₀I/(4πr^2)
  • C. B = μ₀I/(2r)
  • D. B = μ₀I/(πr^2)
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