CUET · PHYSICS · PYQ PAPER 2023
Two coherent light beams of intensity 2I and 18I are superposed with each other. The maximum and minimum possible intensities in the resulting beam are
- A 36I, 4I
- B 32I, 8I
- C 324I, 4I
- D 400I, 324I
Answer & Solution
Correct Answer
(B) 32I, 8I
Step-by-step Solution
Detailed explanation
\(I_{max} = (\sqrt{I_1} + \sqrt{I_2})^2 = (\sqrt{2I} + \sqrt{18I})^2 = (4\sqrt{2I})^2 = 32I\) \(I_{min} = (\sqrt{I_1} - \sqrt{I_2})^2 = (\sqrt{2I} - \sqrt{18I})^2 = (-2\sqrt{2I})^2 = 8I\)
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
- Match List I with List - II.
List - I List - II (A) Interference experiment (I) Maxwell (B) Electromagnetic theory of light (II) Christian Huygens (C) Wave theory of light (III) Isaac Newton (D) Particle theory of light (IV) Thomas Young
Choose the correct answer from the options given below :CUET 2023 Medium - Identify X in the following nuclear reaction:
\( {}_{6}^{12}C + {}_{1}^{1}H \rightarrow X \)CUET 2023 Easy - In a p-n junction, the magnitude of the drift current is lower than the magnitude of the diffusion current when the junction isCUET 2025 Easy
- Keeping the voltage of the charging source constant, the separation between the plates of the capacitor is decreased by 10%. The percentage change in the energy stored in the capacitor will be:CUET 2025 Medium
- The resistance of a potentiometer wire of length 4 m is \( 10 \ \Omega \).
A resistance box and a 2 V accumulator are connected in series with it.
What resistance should be introduced in the box to have a potential drop of \( 1 \ \mu\text{V/mm} \) along the potentiometer wire?CUET 2023 Medium - Two charges, \(+ 20 \, μC\) and \(+ 40 \, μC\) are placed at a separation of 4 cm. The electric potential due to the pair at the middle point of the line joining the two charges is:CUET 2025 Hard
More PYQs from CUET
- Which of the following are fat soluble vitamins :
(A) vit A
(B) vit B
(C) vit D
(D) vit E
(E) vit K
Choose the \textbf{correct} answer from the options given below :CUET 2023 Medium - A capacitor has a reactance of 100 \( \Omega \) at 50 Hz. Its reactance at 125 Hz would beCUET 2025 Medium
- Match List-I with List-II
Choose the correct answer from the options given below:List-I ( Terms) List-II (Examples) (A) Chromosomal disorder (I) Color Blindness (B) Incomplete dominance (II) Drosophila (C) Sex-linked recessive disorder (III) Antirrhinum (D) Male heterogamety (IV) Down's Syndrome CUET 2025 Hard - \(\int\left(e^{x \log a}+e^{a \log x}\right) d x\) is equal to (where \(\left.a>1\right)\)CUET 2025 Hard
- Given below are some stages of human evolution. Arrange them in correct
sequence (Past to Recent)
(A) Homo habilis
(B) Homo sapiens
(C) Homo neanderthalensis
(D) Homo erectus
Choose the correct answer from the options given below:CUET 2025 Medium - If \(x=a \sec ^3 \theta, y=a \tan ^3 \theta\), then \(\frac{d y}{d x}\) at \(\theta=\frac{\pi}{3}\) isCUET 2025 Medium