ISRO Placement paper Pattern (Sampling frequency) 1.If sampling frequency doubles then a) Quantization noise decreases b) Quantization density decreases c) Quantization noise increases d) Quantization density increases 2. Two signals of 2GHz and 4GHz are frequency modulated on same carrier 10 GHz. Find the ratio of frequency deviation if band widths of both are equal. [...]
BEL Placement Paper Technical- Electronics 1. VSWR on a transmission line is always 1. Equal to 1 2. Equal to 0 3. Less than 1 4. Greater than 1 2. In a amplitude modulated wave, the value of Vmax is 10V and Vmin is 5V. The % modulation in this case is: 1. 2% b. [...]
BEL Placement Paper (Technical-Electronics 1. The register is a 1. Simplified unit of a subtractor 2. Cascaded group of the flip-flop 3. Binary ripple counter 4. Data selector 2. The energy of the photo electron depends upon the following factor 1. Intensity of incident radiation 2. Quality of the photocathode 3. Frequency of incident radiation [...]
