CUET · PHYSICS · PYQ PAPER 2023
Which of the following shows the correct relation between electric Intensity \(E\), and electric potential \(V\) :
- A \(V=\frac{d E}{d r}\)
- B \(E=\frac{d V}{d r}\)
- C \(E=\frac{-d V}{d r}\)
- D \(E=\frac{-d V}{d r}\)
Answer & Solution
Correct Answer
(C) \(E=\frac{-d V}{d r}\)
Step-by-step Solution
Detailed explanation
Electric intensity ( \(E\) ) is defined as the negative gradient of electric potential ( \(V\) ) with respect to distance ( \(r\) ). The negative sign indicates that the direction of the electric field is always in the direction of decreasing electric potential. Mathematically,…
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 focal length of a thin lens in vacuum is f. If the material of the lens has refractive index \( \frac{3}{2} \), its focal length when immersed in water of refractive index \( \frac{4}{3} \) would be :CUET 2023 Hard
- Four double convex lenses, with the following specifications are available:
Lens Focal Length Aperture A 100cm 10cm B 100cm 5cm C 10cm 2cm D 5cm 2cm
Which two of the given four lenses should be selected as the objective and eye-piece to construct an astronomical telescope?CUET 2023 Medium - In a series LCR circuit, \( C = 5 \text{ }\mu\text{F} \) and \( \omega = 1000 \text{ rad/s} \). The value of inductance L for which the current is maximum in this circuit will be :CUET 2025 Medium
- The colour of light which is scattered the most by the atmospheric molecules isCUET 2025 Hard
- The cause of the depletion layer in the p-n junction region isCUET 2025 Hard
- Identify the correct statements from the following in the context of electromagnetic waves.
(A) X-rays are not electromagnetic waves.
(B) Electromagnetic waves are transverse in nature.
(C) Electromagnetic waves can not be polarised.
(D) Electromagnetic waves travel with the speed of light in vacuum.
Choose the correct answer from the options given below:CUET 2025 Medium
More PYQs from CUET
- Match List-l with List-ll
Choose the correct answer from the options given below :List - l (Inverse Trigonometric function) List - ll (Principal values of arguments) (A) \(\sin ^{-1}\left(-\frac{1}{2}\right)\) (I) \(-\frac{\pi}{3}\) (B) \(\cos ^{-1}\left(-\frac{1}{2}\right)\) (II) \(\frac{3 \pi}{4}\) (C) \(\tan ^{-1}(-\sqrt{3})\) (III) \(-\frac{\pi}{6}\) (D) \(\sec ^{-1}(-\sqrt{2})\) (IV) \(\frac{2 \pi}{3}\) CUET 2025 Hard - Which of the following is a correct statement?CUET 2023 Medium
- Elements of group-15, 16 and 17 form compounds with hydrogen with general formula MH3, \(H 2 M\) and HX (called hydrogen halides). Stability of these hydrides, along with M-H bond strength and basic nature decreases down the group. Boiling point of these hydrides mainly depends on the strength of their inter molecular forces.
Decreasing order of boiling point of group 15 hydrides is:
A. \(NH _3\)
B. \(PH _3\)
C. \(AsH _3\)
D. \(SbH _3\)
E. \(BiH _3\)
Choose the correct answer from the options given below:CUET 2023 Medium - A slit is illuminated by light of wavelength \( 6500 \text{ \AA} \).
The first minimum is observed at \( \theta = 30^\circ \). The width of the slit is:CUET 2025 Medium - Which of the following microbe serves as an important biofertiliser in paddy field?CUET 2023 Medium
- In which of the following, the time series may show the gradual shifts to relatively higher or lower values over a long period of time?CUET 2025 Easy