CUET · PHYSICS · PYQ PAPER 2025
In a Young's double slit experiment, the fringe width is \(\beta\). If the entire apparatus is immersed in a liquid of refractive index \(\mu\), the new fringe width is
- A \(\beta\)
- B \(\beta \mu^{-2}\)
- C \(\beta \mu^{-1}\)
- D \(\beta \mu\)
Answer & Solution
Correct Answer
(C) \(\beta \mu^{-1}\)
Step-by-step Solution
Detailed explanation
\(\beta = \frac{\lambda D}{d}\) \(\lambda' = \frac{\lambda}{\mu}\) \(\beta' = \frac{\lambda' D}{d} = \frac{(\lambda/\mu) D}{d}\) \(\beta' = \frac{1}{\mu} \left(\frac{\lambda D}{d}\right) = \beta \mu^{-1}\)
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
- Let \( i_E, i_C \) and \( i_B \) represent the emitter current, collector current and base current respectively in a transistor. Choose the correct statement from the following:CUET 2023 Medium
- If red light is replaced by blue light in single slit diffraction thenCUET 2023 Easy
- A signal of 5 kHz frequency is amplitude modulated on a carrier wave of frequency 3 MHz. The frequency of the resultant signal are:CUET 2023 Easy
- An electron placed in a magnetic field of \( 3.14 \times 10^{-4} \, \text{T} \) moves in a circle. The frequency of the revolution of the electron is:CUET 2025 Easy
- Two point charges placed a distance d apart in vacuum exert a force of magnitude F on each other. One of the two charges is doubled. To keep the magnitude of force same the separation between the charges should be changed toCUET 2025 Hard
- Two charges of -2 \(\mu C\) and +2 \(\mu C\) are placed at the point A (0, 2, 0) m and B (0, -2, 0) m located in an electric field \(E = 0.5i\) V/cm. The magnitude of torque acting on the dipole is:CUET 2023 Easy
More PYQs from CUET
- Electrons in an experiment are accelerated by a voltage of 36 kV. If the voltage is increased to 144 kV, then the de-broglie wavelength associated with the electron wouldCUET 2023 Easy
- Which one of the following statements does not improve the reproductive health of society?CUET 2025 Medium
- Read the passage carefully and answer the questions
Carbohydrates are naturally formed organic compounds from various plants. The common chemical formula, \(C _x\left( H _2 O \right)_y\), was considered as hydrates of carbon to derive the various carbohydrates. For instance, the general formula for glucose ( \(C _6 H _{12} O _6\) ) easily fits into the above formula. Carbohydrates also called saccharides are classified on the basis of their behavior towards hydrolysis. Monosaccharides cannot be hydrolyzed further to simpler units of polyhydroxy aldehyde or ketones. About 20 monosaccharides are known to occur in nature. Carbohydrates that yield large number of monosaccharide units are called polysaccharides. Amino acids contain ( \(- NH _2\) ) and ( - COOH ), which can be classified in various forms. Proteins are polymers of alpha amino acids which are connected to each other by a peptide bond or peptide linkage. When a native protein is subjected to physical change, its globules unfold and helix get uncoiled and the protein loses its biological activity. The protein is said to be denaturated.
The two monosaccharides units are joined together through which linkage ?CUET 2025 Medium - Which one of the following takes place in all eukaryotic organisms as a method of cellular defense?CUET 2025 Easy
- Identify, which is not the example of homology in evolution.CUET 2025 Easy
- Match List I with List II.
Choose the correct answer from the options given below:LIST I LIST II A. Agrobacterium tumifaciens I. Join foreign DNA to plasmid B. Thermus aquaticus II. First recombinant DNA C. Plasmid of Salmonella III. Thermostable DNA polymerase D. Ligase IV. Ti Plasmid CUET 2023 Easy