CUET Questions — Physics

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

Q26. A short solenoid of radius a and n₁ number of turns per unit length and length L is kept coaxially inside a very long solenoid of radius b and n₂ number of turns per unit length. What is the mutu

Q30. An alpha-particle moves with a speed of (5 x 10⁵î)ms⁻¹. It enters a region where there is a magnetic field of magnitude 4T, directed at an angle of 45° to the X-axis and lying in XY plane. The ma

Q29. A 25 µF capacitor, a 0.10 H inductor and a 25 Ω resistor is connected in series with an ac source of emf ε = 310 sin 314 t. What is the frequency of AC source? (a) 314 Hz (b) 100 Hz (c) 50 Hz (d)

Q45. Arrange the following in the increasing order : (A) Micrometre (B) Centimetre (C) Mile (D) Kilometre Choose the correct answer from the options given below:

Q40. A piece of copper and another of germanium are cooled from room temperature to 100 K. The resistance of: (a) copper increases and germanium decreases (b) copper decreases and germanium increases

Q33 What is the unit of electric flux in terms of the base units of SI? (a) kg⁻¹ m³ s⁻³ A⁻¹ (b) kgm³ s⁻³ A⁻¹ (c) kgm³ s⁻³ A⁻¹ (d) kgm³ s⁻³ A⁻¹

Q16. An insulating rod of length L carries charge q distributed uniformly on it. The rod is pivoted at one end and is rotated at a frequency f about a fixed perpendicular axis. Then the magnetic dipol

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

Q45. A magnet suspended freely at the Equator will set itself ______ to the surface of Earth, while one suspended at pole will stand ______. (a) vertical, parallel (b) parallel, parallel (c) parallel,