CUET Questions — Physics

Q45. What should be the size of an obstacle to observe diffraction?

Q47. An object is placed before a convex lens and its real image is obtained. Now if half of the surface is covered with paper. The result will be: (a) No image will be formed (b) Half image will be f

Q13. Match List - I with List - II. List - I (A) Low Mass number nuclei (B) Electron microscope (C) Beta decay (D) 235U List - II (I) Medium penetrating power (II) Nuclear reactor (III) Diffracted ele

Q45. What uniform magnetic field applied perpendicular to a beam of electrons moving at 1.3 x 106 m/s, is required to make the electrons travels in a circular arc of radius 0.35 m? (a) 2.1 x 10-5 G (b

Q24. Energy gap between valence band and conduction band of a semiconductor is approximately: (a) zero (b) 4 eV (c) 1 eV (d) 10 eV

Q31. In an AC generator when the plane of the armature is perpendicular to the magnetic field, what will the magnitude of the magnetic flux passing through the coil and the emf induced in the coil be?

Q38. The capacities of two capacitors are C₁ and C₂ and their respective potentials are V₁ and V₂. If they are connected with a wire, then the loss of energy is given by: (a) C1C2(V1+V2) / (2(C1+C2))

Q19. The time taken by light to travel normally through a glass plate of thickness 1 mm would be: (Take refractive index of glass = 1.5) (a) 0.1 x 10⁻¹³s (b) 12 x 10⁻⁵s (c) 5 x 10⁻¹²s (d) 1.5 x 10⁻⁵s

Q39. Four materials A, B, C and D have the magnetic susceptibilities XmA, XMB, Xmc and Xmprespectively. which are related as XmD < XmC < XMB < XMA Which material can be magnetised with maximum ease? (

Q19. After how many half-lives a radioactive substance will decay to 6.25% of its original value: (a) One half life (b) Two half lives (c) Three half lives (d) Four half lives