CUET · PHYSICS · PYQ PAPER 2023
Match List I with List II
| LIST I | LIST II |
| A. Photodiode | I. junction area is kept much larger and biasing not required |
| B. Light emitting diode | II. used to detect intensity of radiation |
| C. Solar cell | III. Used as a voltage regulator |
| D. Zener diode | IV. emits spontaneous radiation under forward bias |
Choose the correct answer from the options given below:
- A A-II, B-IV, C-I, D-III
- B A-IV, B-II, C-I, D-III
- C A-I, B-II, C-IV, D-III
- D A-II, B-I, C-IV, D-III
Answer & Solution
Correct Answer
(A) A-II, B-IV, C-I, D-III
Step-by-step Solution
Detailed explanation
A - II (Photodiode): It operates in reverse bias to detect radiation intensity; incoming light creates electron-hole pairs that increase the reverse current. B - IV (LED): A light-emitting diode emits spontaneous radiation when electrons and holes recombine under forward bias. C…
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
- Two identical circular loops P and Q each of radius R and carrying current I are kept in perpendicular planes such that they have a common centre as shown in figure. The magnitude of the net magnetic field at the common centre is :
CUET 2023 Medium - In the depletion layer of a reverse biased p-n junction, the :CUET 2023 Easy
- A steady current flows in a metallic conductor of non-uniform cross-section. The quantity that is constant along the length isCUET 2025 Medium
- When a capacitor is subjected to a D.C. source it takes small time internal to get fully charged up. During this small time interval there is no passage of charge through dielectric, yet we use a term - displacement current. This term is used because :CUET 2023 Hard
- In a step-down transformer, 22 kV is converted into 220 V. The number of turns in the primary coil is 60000. The number of turns in the secondary coil will beCUET 2025 Easy
- In Young's double slit experiment, the light has a frequency \( 12 \times 10^{14} \text{ Hz} \) and the distance between the centres of adjacent fringes is 0.8 mm. If the screen is 1.6 m away, what is the distance between the slits? (Take speed of light \( c = 3 \times 10^8 \text{ m s}^{-1} \))CUET 2023 Easy
More PYQs from CUET
- Match List - I with List - II.
Choose the correct answer from the options given below :List - I List - II (A) Embryo with 8-16 blastomeres (I) Stem cell (B) Cells having the potency to give rise to all the tissues and organs (II) Oxytocin (C) The hormone released from maternal pituitary during foetal ejection reflex (III) Progesterone (D) The hormone released by corpus luteum (IV) Morula CUET 2023 Hard - Arrange the following in the increasing order of oxidation state of nitrogen :
(A) \(NO\)
(B) \(NO_2\)
(C) \(N_2O_5\)
(D) \(N_2O\)
(E) \(N_2O_3\)
Choose the correct answer from the options given below :CUET 2023 Medium - How many \(Cr-O\) bonds in dichromate ions are of the same bond length and are in resonance?CUET 2023 Hard
- Which of the following is NOT a secondary lymphoid organ?CUET 2023 Hard
- Match List - I with List - II.
List-I List-II (A) Cuckoo lays egg in crow’s nest (IV) Brood parasitism (B) Orchid grows in mango tree (I) Commensalism (C) Ticks live on skin of dogs (II) Parasitism (D) Species of Wasp and fig species (III) Mutualism
Choose the correct answer from the options given below :CUET 2023 Medium - Two metals, X and Y have work functions, 4 eV and 10 eV, respectively. The ratio of threshold wavelengths of metal X to metal Y isCUET 2025 Hard