Poll Kriti Narang Asked: November 7, 2019In: Class 12 Audio sine waves of 3 kHz frequency are used to amplitude modulate a carrier signal of 1.5 MHz. Which of the following statements are true? Which one is correct. cbseclass 12class 12 physicscommunication systemsncertphysics
Poll Kriti Narang Asked: November 7, 2019In: Class 12 A 100m long antenna is mounted on a 500m tall building. The complex can become a transmission tower for waves with λ. Select the correct one. cbsecbse exams 2020class 12class 12 physicsncertncert solutionsphysics
Kriti Narang Asked: November 7, 2019In: Class 7 Why should we prefer to use paper bags rather than polythene bags? Give your opinion. cbsecbse exams 2020class 7class 7 sciencencertscience
Poll Kriti Narang Asked: November 7, 2019In: Class 12 Three waves A, B and C of frequencies 1600 kHz, 5 MHz and 60 MHz, respectively are to be transmitted from one place to another. Which of the following is the most appropriate mode of communication: Select the correct answers. cbsecbse exams 2020class 12class 12 physicscommunication systemsncertncert solutions
Poll Kriti Narang Asked: November 7, 2019In: Class 12 A speech signal of 3 kHz is used to modulate a carrier signal of frequency 1 MHz, using amplitude modulation. The frequencies of the side bands will be Select the correct one. cbseclass 12class 12 physicscommunication systemsncertphysics
Poll Kriti Narang Asked: November 7, 2019In: Class 12 A male voice after modulation-transmission sounds like that of a female to the receiver. The problem is due to Which one is correct as per you. 12th students must try. cbsecbse exams 2020class 12class 12 physicscommunication systemsncertphysics
Poll Kriti Narang Asked: November 7, 2019In: Class 12 The Electric field at a point is Which is true for Electric field? cbseclass 12class 12 physicsncertphysics
Poll Kriti Narang Asked: November 7, 2019In: Class 12 A positively charged particle is released from rest in an uniform electric field. The electric potential energy of the charge Which is correct. cbsecbse 2020class 12class 12 physicsncertphysics
Poll Kriti Narang Asked: November 7, 2019In: Class 12 Equipotential surfaces Select one option. cbseclass 12class 12 physicsncertphysics
