CUET Questions — Physics — CUET UG

Q21. Charge on a conducting metal sphere is present: (a) on the surface of the sphere (b) inside the sphere (c) outside the sphere (d) both inside and outside the sphere

Q17. The wave length of Red light in the visible region is about 760 nm the energy of photon in that case will be: (a) 2.43 eV (b) 3.18 eV (c) 1.64 eV (d) 2.68 eV

Q48. Two coils of self-inductances L₁ and L₂ are kept close to each other so that the effective flux in one is completely linked with the other. What is the mutual inductance M between them? (a) L₁L₂

Q10. An electric dipole of dipole moment P is rotated in an electric field of magnitude E from the most stable orientation to most unstable orientation. The work done in the process is:

Q38. A radioactive nucleus decays as given below: Z_P^A → Z+1_Q^A → Z-1_R^(A-4) → Z-1_R^(A-4) Which particles are emitted in the sequence? (a) α, β, γ (b) β, γ, α (c) γ, α, β (d) β, α, γ

Q1. A Zener diode is used in a voltage regulator circuit as shown below. Its breakdown voltage is 15 V. What is the current flowing through the Zener diode? 500 Ω +0 1 ΚΩ 25 V 15 V (a) 5 mA (b) 10 mA

Q25. Match List - I with List - II LIST - I (Type of EM Wave) (A) Microwaves (B) Radio waves (C) Infrared waves (D) Ultraviolet rays LIST - II (Application) (I) Cellular phones (II) Greenhouse effect

Q45. Match List - I with List - II. List - I A. [Image of electric dipole moment p parallel to electric field E] B. [Image of electric dipole moment p anti-parallel to electric field E] C. [Image of e

Q1. In an LCR circuit, which of the following expression has the dimension of frequency: (a) VC-RA (b) 1/RC (c) R/L (d) 1/VLC

Q46. The bottom of a container is a 6 cm thick glass (μ = 1.5) slab. The container contains a thick layer of water (μ_w = 1.33), 4 cm on top of the glass. What is the apparent position of a scratch on

Q2. Which of the following is the correct equation for the law of radioactive decay? Symbols have their usual meaning. (1) N(t) = Noe-t/x (2) N(t) = Noe-At (3) N(t) = Noe-2/t (4) N(t) = Noe-2At

Q12. What will be the minimum length of antenna required to transmit a radio signal of frequency 10 MHz? (a) 30 m (b) 15 m (c) 7.5 m (d) 60 m

Q13. If the 8th bright band of wavelength λ₁ coincides with 9th bright brand of wavelength 22 in a Young's double slits experiment, then the possible wavelength of two lights is: (a) λ₁ = 450 nm, λ₂ =

Q44. Speed of Electromagnetic wave is Not the same: (a) in all media (b) for all intensities in vacuum (c) for all frequencies in vacuum (d) for all wavelengths in vacuum

Q35. A capacitor charged from a 50 V d.c. supply is found to have charge of 10µC. The capacitance of the capacitor would be: (a) 0.1μF (b) 0.2µF (c) 0.3µF (d) 0.4µF

Q39. We can reduce eddy currents in the core of transformer by: (a) increasing the number of turns in the secondary coil (b) taking laminated core (c) making step down transformer (d) using a weak AC

Q28. Diameter of the objective lens of a telescope is 250 cm. For light of wavelength 600 nm, coming from a distant object, the limit of resolution of the telescope is close to: (a) 1.5 x 10-7 rad (b)

Q30. A bubble in glass slab (μ = 1.5) when viewed from one side appears at 5 cm and 2 cm from otherside, then the thickness of the glass slab is: (a) 2.5 cm (b) 7.5 cm (c) 10.5 cm (d) 17.5 cm

Q50. Time period of oscillation of a bar magnet in a uniform magnetic field is T₀. The magnet is cut into 3 equal parts transverse to its length. The new time period of oscillation of one part will be

Q12. Arrange the following EM waves increasing order of their frequency? A. Ultraviolet rays B. Gamma rays C. Radio waves D. Infrared waves E. X-rays Chose the correct answer from the options given b