A. 0.812 B. 81.2 C. 0.482 D. 8.12
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A. Longitudinal wave B. Transverse wave C. Both D. None of these
A. Radar B. Sonar C. Pukar D. None
A. Radar B. Sonar C. Pukar D. None
A. Polarised B. Longitudinal C. Transverse D. None of these
A. 10 Hz B. 25 Hz C. 50 Hz D. 100 Hz
A. Efficiency B. Average d.c C. Average output voltage D. None of these
A. Diffraction B. Interference C. Polarization D. Photoelectric effect
A. Radiowave B. Y-ray C. x-ray D. Microwave