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

Q7. When we draw the variation of the potential energy of a pair of nucleons with their separations, then A +100 Repulsive MeV B 0 D Attractive -100 Το 1 2 3 4 r(fm) (a) the force is attractive when s

Q20. A slab of material of dielectric constant k has the same area as the plates of a parallel plate capacitor, but has a thickness 3d/4. Where d is the distance between plates of capaciptor. The rati

Q48. A car has a fresh storage battery of e.m.f. 15 V and internal resistance 4 x 10⁻² Ω. If the starter motor draws a current of 85 A, what is the terminal voltage of the battery when the starter is

Q43. A hot wire voltmeter measures the voltage across the inductor, the capacitor and the resistor as 150 V, 100 V and 50 V across a series, LCR circuit. If resistance is 100 Ω, the current in the cir

Q26. In a hydrogen atom an electron makes a transition from n₁ → n₂, where n₁ and n₂ are the principal quantum numbers of these two states. Assuming Bohr's model to be valid, if the time period of ele

Q59. C.V. Raman got Nobel Prize in 1930 for his discovery of:

Q28. When a capacitor is subjected to a D.C. source it takes small time internal to get fully charged up. During this small-time interval there is no passage of charge through dielectric, yet we use a

Q5. Two spheres of silver of same radii, one solid and the other hollow are charged to the same potential, then: (a) solid sphere will have more charge (b) hollow sphere will have more charge (c) both

Q10. The metre bridge wire is made of alloys such as nichrome because they have: (a) high temperature coefficient of resistance and high resistivity (b) low temperature coefficient of resistance and l

Q44. Which of the following statement is NOT true, when two capacitors charged to different potential are connected in parallel by a conducting wire? (a) Some energy is lost (b) The charge lost by one