CUET Questions — Physics

Q20. A 20-watt, 50 V lamp is to be connected to AC mains of 250 V, 50 Hz. Calculate the value of series capacitor to run the lamp. (a) 1.4 µF (b) 2.1 µF (c) 3.5 µF (d) 4.9 µF

Q29. A source emits sound of frequency 600 Hz inside water. The frequency heard in air (velocity of sound in water is 1500 m/s and velocity of sound in air is 300 m/s) will be: (a) 300 Hz (b) 600 Hz (

Q43. In Bohr's atomic model, the radius of the first orbit isr₀. The radius of the third orbit will be: (a) 3 r₀ (b) 9 r₀ (c) r₀ (d) r₀/3

Q27. Which of the following statements are correct? A. The saturation current is constant with collector plate potential for different frequencies of incident radiation. B. The saturation current is d

Q1. Resolving power of a telescope can be increased by increasing: (a) Wavelength of light incident at telescope (b) Diameter of eye piece (c) Focal length of eyepiece (d) Diameter of Objective lens

Q48. A strong magnetic field is applied on a stationary electron: (a) The electron moves in the direction of the field (b) The electron moves in an opposite direction (c) The electron remains stationa

Q8. Which of the following statements are correct? A. The relative motion between a magnet and a coil is responsible for induction of electric current in the coil. B. Magnetic flux is a vector quantit

Q35. An electric dipole of dipole moment 5 x 10⁻⁶ Cm is placed in a uniform electric field of 10⁻² N/C making an angle of 30° with the direction of the field. The torque exerted by the electric field

Q18. [Diagram showing a logic circuit with two inputs A and B connected to a NAND gate, whose output (Y') is then connected to a NOT gate, with the final output Y.] The logic circuit perform the logic

Q19. Match List - I with List - II List-I (A) Impedance of a series RLC circuit at resonance (B) For a series LC circuit (C) For a parallel LC circuit (D) Reactance of a capacitor in DC circuit List-I