CUET · PHYSICS · PYQ PAPER 2023
Choose the correct answer statements from the following:
A. Magnetic field lines due to a straight wire carrying current, are circles concentric with the wire.
B. Bohr magneton is the maximum value of the magnetic moment of an electron moving around the central nucleus.
C. Ampere's circuital law is not independent of Biot-savart law.
D. Dip is the angle that the total magnetic field of the earth makes with the surface of the earth.
choose the correct answer from the options given below:
- A B and D only
- B A, B and D only
- C B and C only
- D A, C and D only
Answer & Solution
Correct Answer
(D) A, C and D only
Step-by-step Solution
Detailed explanation
A is Correct: According to the right-hand thumb rule, the magnetic field around a straight current-carrying wire forms concentric circles centered on the wire. B is Incorrect: The Bohr magneton ( \(\mu_B\) ) is the minimum (ground state) orbital magnetic moment of an electron,…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from PHYSICS
- The optical length of an astronomical telescope with magnifying power of 10 for normal adjustment is 55 cm. What is the focal length of the objective ?CUET 2023 Hard
- The de-Broglie wavelength associated with an electron accelerated through a potential difference V is \( \lambda \). The new de Broglie wavelength of electron when potential difference is increased to 9V will be:CUET 2023 Easy
- A piece of copper and a piece of germanium are cooled from room temperature 20 C down to 80 K. The resistance ofCUET 2025 Hard
- A Wheatstone bridge has four resistors: R1= R2 = R3 = 1 \( \Omega \) and R4 = 2 \( \Omega \). In order to balance the bridge, resistor R4 has to be shunted by resistance ofCUET 2025 Medium
- When a ray of light enters a glass slab from air :CUET 2023 Hard
- A current of 5 A is passing through a metallic wire of cross-sectional area \( 5 \times 10^{-6} \text{ m}^2 \).
If the density of the charge carriers in the wire is \( 5 \times 10^{26} \text{ m}^{-3} \), the drift velocity of the electrons is:CUET 2025 Easy
More PYQs from CUET
- Which of the following compounds will give the Hell-Volhard-Zelinsky reaction?CUET 2024 Easy
- Pick the incorrect statement about aniline.CUET 2023 Hard
- The maximum value of Z = 3x + y subject to the constraints
x + y \(\le\) 7,
x \(\le\) 5,
y \(\le\) 4,
x \(\ge\) 0, y \(\ge\) 0 is:CUET 2023 Easy - An alkyl halide with molecular formula \(\text{C}_5\text{H}_{11}\text{Br}\) on dehydrohalogenation give two isomeric alkenes X and Y with formula \(\text{C}_5\text{H}_{10}\). On reductive ozonolysis X and Y gave four compounds: \(\text{CH}_3\text{CHO}\) (ethanal), \(\text{CH}_3\text{COCH}_3\) (propanone), \((\text{CH}_3)_2\text{CHCHO}\) (3-methylbutanal), and \(\text{HCHO}\) (methanal). The alkyl halide is:CUET 2023 Medium
- Let \(P\) be the point of intersection of the line \(\frac{x+5}{6}=\frac{y+4}{1}=\frac{3-z}{1}\) and the plane \(x+y+2 z=2\).
If \(Q\) is the point \((-3,3,4)\), then \((P Q)^2\) is equal toCUET 2023 Medium - A first order reaction is 50% completed in \(1.26 \times 10^{14}\) s.
How much time would it take for 100% completion?CUET 2025 Medium