CUET Questions — Physics

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

Q20 Which of the following causes electric conduction in a semiconductor? (a) Holes only (b) Electrons only (c) Both electrons and holes (d) Neither holes nor electrons

Q37. Light of two different frequencies whose photons have energies 1 eV and 2.5 eV respectively, illuminate a metal of work function 0.5 eV. The ratio of the maximum KE of the emitted electrons will

Q42. Which of the following radiations will have maximum penetration power? (a) X-rays (b) a-rays (c) ẞ-rays (d) γ -rays

Q33. In the potentiometer circuit the balance point is at X. The balance point will be shifted right towards B when: P R X A B Q G S (A) Resistance R is increased keeping all other parameters constant

Q32. A carrier wave of peak voltage 14 V is used to transmit a message. What should be the peak voltage of the modulating signal in order to have a modulation index of 70%? (a) 20.0 V (b) 2.0 V (c) 9.

Q7. Transverse nature of electromagnetic waves are/is evident by: A. Interference B. Dispersion C. Polarisation D. Diffraction Choose the correct answer from the options given below:

Q17. A particle moves three times as fast as an electron. The ratio of the de Broglie wavelength of the particle to that of the electron is 1.813 x 10-4. The mass of the particle is: (a) 1.67 x 10-27

Q43. Match List - I with List - II. List - I (A) 1 T (B) 1 H (C) J T⁻¹ (D) 1 Wb List - II (I) Vs (II) 1 m² A (III) Wb/m² (IV) Wb/A Choose the correct answer from the options given below: (a) (A)-(I),

Q15. The critical angle of a medium for a specific wavelength, if the medium has relative permittivity 3 and relative permeability 4/3 for this wavelength, will be: (a) 15° (b) 30° (c) 45° (d) 60°