CUET · PHYSICS · PYQ PAPER 2023
The sunlight reaching the earth has maximum magnetic field \(2.4 \mu T\). What is the maximum electric field in this light ? Speed of light \(=3 \times 10^8 m s ^{-1}\)
- A \(0.72 V m ^{-1}\)
- B \(720 V m ^{-1}\)
- C \(7200 V m ^{-1}\)
- D \(7.20 Vm ^{-1}\)
Answer & Solution
Correct Answer
(B) \(720 V m ^{-1}\)
Step-by-step Solution
Detailed explanation
\(E_0 = c B_0\) \(E_0 = (3 \times 10^8 m s^{-1}) (2.4 \times 10^{-6} T)\) \(E_0 = 720 V m^{-1}\)
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 10 cm long air-core solenoid of cross-sectional area \( 1.0 \, \text{cm}^2 \) contains 300 turns. Its inductance is:CUET 2025 Easy
- If \( \mu_0 \) is the permeability and \( \epsilon_0 \) is the permittivity of free space, then the velocity of light (c) is:CUET 2025 Easy
- A proton is moving in a circular path in a magnetic field perpendicular to its plane. It possesses kinetic energy E. If the magnetic field increases to four times and the proton moves in same circular path, what will be kinetic energy?CUET 2023 Easy
- The de Broglie wavelength of an electron having kinetic energy 56 eV is :CUET 2023 Hard
- Which of the following statements is correct for an electric dipole placed along the direction of a non-uniform electric field?CUET 2025 Medium
- Which of the following is correct for equipotential surfaces ?
(A) Electric field lines are always perpendicular to equipotential surfaces.
(B) Equipotential surfaces are always spherical in shape.
(C) Work done in moving a charge on equipotential surface is always negative.
(D) Two equipotential surfaces never intersect each other.
(E) Workdone in moving a charge on equipotential surface is always zero.CUET 2023 Easy
More PYQs from CUET
- The flocculating power of \(\left[ Fe ( CN )_6\right]^{4-}\) is higher than \(PO _4^{3-}\) ion because :CUET 2023 Easy
- Match List - I with List - II.
List-I (Birth control methods) List-II (Features) (A) Diaphragms (I) Removal of vas deferens (B) Lactational amenorrhea (II) Increase phagocytosis of sperms (C) Vasectomy (III) Absence of menstrual cycle and ovulation following parturition (D) IUDs (IV) Cover the cervix and blocks the entry of sperm
Choose the correct answer from the options given below :CUET 2023 Easy - In a typical test cross-CUET 2025 Easy
- Iron exhibits \(+2\) and \(+3\) oxidation states. Which of the following statements about iron is incorrect?
(A) Ferrous oxide is more basic in nature than the ferric oxide.
(B) Ferrous compounds are relatively more ionic than the corresponding ferric compounds.
(C) Ferrous compounds are less volatile than the corresponding ferric compounds.
(D) Ferrous compounds are more easily hydrolysed than the corresponding ferric compounds.
Choose the correct answer from the options given below :CUET 2023 Medium - Choose the incorrect statements from the options given below:
(A) S I unit of inductive reactance and capacitive reactance is Ohm
(B) Inductive reactance acting like resistance, stops the dc and ac both
(C) Inductive reactance and capacitive reactance both are proportional to frequency of ac supply,
(D) There is no power consumption in pure capacitive reactance.
Choose the correct answer from the options given below:CUET 2025 Medium - Match List - I with List - II.
List - I List - II (A) Cloning vector (I) Sea weeds (B) β-galactosidase (II) Selectable marker (C) Agarose (III) Ti-plasmid of Agrobacterium tumifaciens (D) \(a m p^{ R }\) in pBR322 (IV) Chromogenic screening
Choose the correct answer from the options given below :CUET 2023 Medium