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Operation And Maintainence Of Communication Devices Class 12 Question Paper PDF with Solutions
CBSE Class 12 Operation And Maintainence Of Communication Devices Question Paper 2019. Students can download the last year board exams question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.
SECTION A
1. Modulating frequency is
(a) Higher than carrier frequency
(b) Lower than carrier frequency
(c) Equal to carrier frequency
(d) Can have any value
2. In free space, the speed of electromagnetic waves is
(a) 300 metres/second
(b) 3 × 104 metres/second
(c) 1 × 10 metres/second
(d) 3 × 108 metres/second
3. VHF signals propagate through
(a) Ionosphere
(b) Troposphere
(c) Surface of the earth
(d) Waveguide
4. In a cellular mobile system, the shape of the cells is
(a) Circular
(b) Hexagonal
(c) Pentagon
(d) Rectangular
5. A geostationary satellite takes one round of its orbit in
(a) One hour
(b) Four hours
(c) Twelve hours
(d) Twenty-four hours
6. The source of electrical power in a satellite system is
(a) Battery Cells
(b) Generators
(c) Solar Panels
(d) Fuel Cells
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CBSE Class 12 Operation And Maintainence Of Communication Devices Question Paper 2019 & Previous Year Question Papers for Class 12 Operation And Maintainence Of Communication Devices
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FAQs
The CBSE Class 12 Operation And Maintainence Of Communication Devices Question Paper 2019 is available for download on StudiesToday.com. It includes complete set with all sections so that Class 12 students can practice with the exact same paper that came in the CBSE exams.
Yes, the solutions for CBSE Class 12 Operation And Maintainence Of Communication Devices Question Paper 2019 are prepared by subject matter experts as per official marking scheme. Class 12 students will understand the structure of answers and 'step-marks' methodology Operation And Maintainence Of Communication Devices.
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