CUET Questions — Physics

Q26. The given combination represents the following gate: (a) OR (b) XOR (c) NAND (d) NOR

Q15. A cube of side 'a' has a charge Q at each of its vertices, what is the potential due to this charge array at the centre of the cube? (a) 4Q / (3πε₀a) (b) Q / (√3πε₀a) (c) 2Q / (√3πε₀a) (d) 8Q / (

Q17. Peak voltage of a modulating signal is 2 V. The carrier wave is represented by C (t) = 4sin (8πt)V. The modulation index of modulated singnal is: (a) 0.5 (b) 1.0 (c) 4.0 (d) 8.0

Q35. The current flowing through a wire as a function fo time is given as: I = 3t² + 2t + 5The charge flowing through any cross-section of the wire in first 2 s is: (a) 5 C (b) 17 C (c) 16 C (d) 22 C

Q28. Magnetic susceptibility χ of a given material is -0.5. Identify the magnetic material.

Q15. The anode voltage of a photocell is kept fixed. The wavelength, of light falling on the cathode is gradually changed. The plate currents I of the photocell varies as follows.

Q2. If the forward voltage in a p-n junction diode is increased, the width of the depletion region (a) Increases (b) Decreases (c) No change (d) Fluctuates

Q34. Kirchhoff's First Law, ΣΙ = 0 at a junction deal with conservation of: (a) Charge (b) Energy (c) Momentum (d) Angular Momentum

Q23. Two identical thin metal plates are given charges q1 and q2 (q2 q1) respectively. If they are now brought close together to form a parallel plate capacitor with a capacitance 'C' then the potenti

Q34. Match List - I with List - II. List - I (A) Resistive Circuit (B) Purely inductive or capacitive circuit (C) LCR series circuit (D) Power dissipated at resonance in LCR circuit List - II (I) No p