CUET · PHYSICS · PYQ PAPER 2025
To demonstrate the phenomenon of interference, required two sources of light must have
- A nearly the same frequency only
- B different wavelengths
- C same frequency and have a constant phase difference
- D same frequency and have a rapidly changing phase difference
Answer & Solution
Correct Answer
(C) same frequency and have a constant phase difference
Step-by-step Solution
Detailed explanation
To observe a stable and sustained interference pattern, the two light sources must be coherent. Coherence requires the sources to satisfy two primary conditions: Same Frequency: The waves must have the same frequency (and thus the same wavelength). Constant Phase Difference: The…
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
- According to the Biot- Savart law, the magnetic field due to a current element is
(A) inversely proportional to the square of the distance from the current element to the point of interest.
(B) produced by a vector source.
(C) perpendicular to the plane containing the displacement vector and the current element.
(D) non-zero at any point in the direction of the current element.
Choose the correct answer from the options given below:CUET 2025 Hard - If \( n_i \) is the concentration of intrinsic charge carriers in a pure semiconductor and \( n_e \) and \( n_h \) be the concentrations of electrons and holes, respectively after the semiconductor is doped, then at thermal equilibrium.CUET 2025 Hard
- A solenoid with 100 turns per metre carries a current of 1.2 A. The magnetic intensity inside the solenoid is :CUET 2023 Hard
- When light travels from one medium to another medium of different refractive index, then the wave will have change in its :CUET 2025 Medium
- The smallest wavelength in the spectral lines of the Paschen series of hydrogen atom is: (R is the Rydberg's constant in Å-1)CUET 2025 Hard
- An electron moving with velocity of \(5.4 \times 10^6\) m/sec. What is the de-Broglie wavelength associated with them (\(h = 6.63 \times 10^{-34}\) J/s)CUET 2023 Medium
More PYQs from CUET
- Choose the logic gate represented by the following combination of logic gates.
CUET 2023 Easy - The angle between the two planes \(x+y-z=3\) and \(3 x+2 y+z=5\) is:CUET 2023 Hard
- The area (in sq.units) of the region enclosed by the curve \(y = cos\) \(x\), \(-\frac{\pi}{2} \leq x \leq \frac{\pi}{2}\) and the \(x\) - axis is:CUET 2025 Medium
- \(n _1\) identical capacitors, each of capacitance \(C _1\), are connected in series and charged by a source of potential difference \(3 V . n _2\) identical capacitors, each of capacitance \(C_2\), are connected in parallel and charged by a source of potential difference 2 V . Total energy stored in both the combinations is the same. What is the value of capacitance \(C _2\) in terms of \(C _{ 1 }\) ?CUET 2023 Medium
- The critical angle for light ray going from medium-1 to medium-2 is \(i_c\). What will be the speed of light in medium-2, if its value in medium-1 is \(u\) ?CUET 2023 Hard
- Match List I with List II.
Choose the correct answer from the options given below:LIST I LIST II A. Green Revolution I. Corrective therapy of hereditary disease B. Gene therapy II. Increased yield and better management of improved crop varieties C. Genetic Engineering Approval Committee III. Mass production of safe and more effective therapeutics D. Recombinant DNA techonologies IV. Make decision to introduce GM organism for public service CUET 2023 Easy