CUET Questions — Physics
362 solved questions with detailed explanations
Q49. A bar magnet of magnetic moment 3 J/T lies aligned with the directions of a uniform magnetic field of 0.2 T. The amount of work, required so as to align its magnetic moment opposite to the field
Q25. A 300 turns rectangular coil of length 20 cm and breadth 12 cm is carrying a current of 12 A, when placed in a magnetic field of 6 T. The plane of the coil is making an angle of 60° with the magn
Q29. A long wire carrying current I is bent in the form of a circle as shown in the figure. I O The B at point O is: (a) (μ₀I/4πr)(1 – π) perpendicularly outward (b) (μ₀I/2πr) perpendicularly inward (
Q19. In Ampere-circuital law, the missing term is: (a) i = ερ dΦ_E / dt (b) i = ε dΦ_E / dt (c) i = 1/ε₀ dΦ_E / dt (d) i = 1/ε dΦ_E / dt
Q21. Choose the correct statement(s) A. In photo electric effect, the minimum negative potential to the plate A for which photocurrent is zero is called saturation potential B. Maximum kinetic energy
Q18. Ao ----> Y Bo ----> Y [Logic circuit symbol for an OR gate] The logic circuit perform the logic function of: (a) AND (b) NAND (c) OR (d) NOR
Q17. Choose the correct relation between drift velocity (vd) and current density (J) from the following: (a) vd = Jne (b) vd = J / (ne) (c) vd = J / (neA) (d) vd = neA / J
Q17. A dentist has a small mirror of focal length 1.6 cm. He observes the cavity in the tooth of a patient by holding the mirror at a distance of 8 mm. from the cavity. The magnification is:
Q20. Match List-I with List-II: List-I (A) Sitar (B) Photocell (C) Battery (D) Loudspeaker List-II (I) Light energy into electric energy (II) Chemical energy into electrical energy (III) Electrical en
Q35. According to Einstein's photoelectric equation, the plot of the Kinetic Energy of the emitted photoelectrons from a metal versus the frequency of the incident radiation gives a straight line whos