This set of Class 12 Physics Chapter 15 Multiple Choice Questions & Answers (MCQs) focuses on “Detection of Amplitude Modulated Waves”. 1. What is the full form of IF? a) Intermediate frequency b) Internal frequency c) Interval frequency d) Immediate frequency 2. Which of the following is not part of the detector system? a) Rectifier … Read more
This set of Class 12 Physics Chapter 15 Multiple Choice Questions & Answers (MCQs) focuses on “Production of Amplitude Modulated Wave”. 1. Which one of the following is a way to produce a signal? a) Superimposition with a carrier signal b) Superimposition with a received signal c) Superimposition with a transmitted signal d) No superimposition … Read more
This set of Class 12 Physics Chapter 15 Multiple Choice Questions & Answers (MCQs) focuses on “Amplitude Modulation”. 1. Identify the type of modulation where the frequency of the modulated wave is equal to that of the carrier wave. a) Frequency modulation b) Amplitude modulation c) Carrier modulation d) Phase modulation 2. What does AGC … Read more
This set of Class 12 Physics Chapter 15 Multiple Choice Questions & Answers (MCQs) focuses on “Communication Systems – Modulation and its Necessity”. 1. What is the modulation used to? a) Reduce the bandwidth used b) Separate the transmissions of different users c) Ensure that intelligence may be transmitted to long distances d) Allow the … Read more
This set of Class 12 Physics Chapter 15 Multiple Choice Questions & Answers (MCQs) focuses on “Communication Systems – Propagation of Electromagnetic Waves”. 1. The maximum distance upto which TV transmission from a TV tower of height h can be received is proportional to which of the following? a) h1/2 b) h c) h3/2 d) … Read more
This set of Class 12 Physics Chapter 15 Multiple Choice Questions & Answers (MCQs) focuses on “Communication Systems – Bandwidth of Transmission Medium”. 1. Which of the following is not a medium of transmission? a) Microwave system b) Wire c) Free space d) Fiber optic cable 2. The range of radio frequencies for communication through … Read more
This set of Class 12 Physics Chapter 15 Multiple Choice Questions & Answers (MCQs) focuses on “Communication Systems – Bandwidth of Signals”. 1. The communication system needed for a given signal depends on which of the following? a) Band of frequencies b) Length of the channel c) Size of the transmitter d) Size of the … Read more
This set of Class 12 Physics Chapter 15 Multiple Choice Questions & Answers (MCQs) focuses on “Basic Terminology Used in Electronic Communication Systems”. 1. What is the electrical analogue of the information produced by the source? a) Attenuation b) Amplification c) Signal d) Modulation 2. What is defined as the largest distance between the source … Read more
This set of Class 12 Physics Chapter 15 Multiple Choice Questions & Answers (MCQs) focuses on “Communication Systems”. These MCQs are created based on the latest CBSE syllabus and the NCERT curriculum, offering valuable assistance for exam preparation. 1. How many elements are essential for any communication system? a) 3 b) 2 c) 4 d) … Read more
This set of Class 12 Physics Chapter 14 Multiple Choice Questions & Answers (MCQs) focuses on “Semiconductor Electronics – Integrated Circuits”. 1. What is the role of SiO2 in Integrated Circuits? a) Insulating component b) Resistance component c) Voltage component d) Output component 2. Which among the following is not easy to fabricate on an … Read more
