CUET · PHYSICS · PYQ PAPER 2023
A non conducting solid sphere of radius R is uniformly charged. The magnitude of the electric field due to the sphere at a distance r from its center :
A. decreases as r increases, for 0 < r < \(\infty\)
B. increases as r increases, for r < R
C. becomes zero.
D. decreases as r increases, for R < r < \(\infty\)
Choose the correct answer from the options given below:
- A B and D only
- B C only
- C A, B and D only
- D A, C and D only
Answer & Solution
Correct Answer
(A) B and D only
Step-by-step Solution
Detailed explanation
For a non-conducting solid sphere with uniform charge: Inside the sphere (\(r Outside the sphere (\(r > R\)): \( E = \frac{kQ}{r^2} \). Thus, E decreases as r increases. At the center (…
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
- A circular coil of 20 turns and radius 10 cm is placed in a uniform magnetic field of 0.10 T normal to the plane of the coil. If the current in the coil is 5 A . The total torque on the coil is :CUET 2023 Hard
- A point source of light is placed at a distance twice the focal length of a converging lens. If the focal length of the lens is f, the intensity of the image of light source on the other side of the lens will be maximum atCUET 2025 Hard
- A proton and an alpha particle enter a uniform magnetic field with the same velocity and move along circular paths. The time period of the alpha particle will be:CUET 2023 Easy
- An ammeter of resistance \( 0.54 \text{ } \Omega \) reads current unto 1 A. The value of the shunt required to increase the range to 10 A isCUET 2025 Easy
- The energy of a photon of wavelength 1 \( \text{\AA} \) is
(Given: \( h = 6.63 \times 10^{-34} \text{ J s} \))CUET 2025 Hard - Match List-I with List-II
List-I (AC Circuit) List-II (Phase Angle) (A) Phase Difference between current and voltage in a pure inductive ac circuit (I) zero (B) Phase Difference between current and voltage in a pure resistive ac circuit (II) \( \pi/2 \), current lags voltage (C) Phase Difference between current and voltage in a pure capacitive ac circuit (III) \( \tan^{-1}(\frac{X_L - X_C}{R}) \) (D) Phase Difference between current and voltage in a series LCR circuit (IV) \( \pi/2 \), current leads voltage
Choose the correct answer from the options given below:CUET 2023 Easy
More PYQs from CUET
- Arrange the given products formed during sewage treatment in correct sequence?
(A) Biogas
(B) Activated sludge
(C) Flocs
(D) Primary sludge
Choose the correct answer from the options given below:CUET 2025 Hard - Two nuclei have mass numbers in the ratio 1:8. The ratio of their nuclear radii would be :CUET 2023 Easy
- If \(\left[\begin{array}{cc}4 x & 5 x-7 \\ 4 x & 2 x+y\end{array}\right]=\left[\begin{array}{cc}x+6 & y \\ 7 y-13 & 7\end{array}\right]\) then the value of \(2 x+y\) is:CUET 2023 Easy
- The corner points of the feasible region determined by the system of linear constraints are \((0,10),(5,5),(15,15),(0,20)\). Let \(Z=a x+b y\), where \(a, b>0\). Condition on \(a\) and \(b\) so that the maximizing value of \(Z\) occurs at both the points \((15,15)\) and \((0,20)\) is:CUET 2023 Medium
- Match List-I with List-II
The function \(f(x)=(x-1)(x+1)^2\) has
Choose the correct answer from the options given below :List-I List-II (A) A local maxima at \(x=\) __________ (I) \(\frac{1}{3}\) (B) A local minima at x = __________ (II) \(0\) (C) The local minimum value of \(f(x)=\) __________ (III) \(-1\) (D) The local maximum value of \(f(x)=\) __________ (IV) \(-\frac{32}{27}\) CUET 2025 Medium - A domestic appliance draws 2.5 A from a 220 V, 50 Hz power supply. The amplitude of current isCUET 2025 Easy