Your cart is empty.
Practice Communication and Optical Instrumentation - Instrumentation Engineering previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
Every graph below is calculated only from this selection.
Year-wise coverage for Communication and Optical Instrumentation. Each bar uses a separate theme-derived color.
How the classified questions are distributed by difficulty.
MCQ, numerical, multiple-select and other formats found in these papers.
Top subjects by unique question coverage.
Top topics across the included previous year papers.
Top subtopics inside this exact selection.
Question coverage for the most populated papers. Every active PYP paper remains listed below.
Open a focused page built from the same verified paper data.
Explore previous-paper coverage, trends and focused practice for Optical Sources, Detectors and Interferometry.
Explore previous-paper coverage, trends and focused practice for Modulation, Multiplexing and Sensor Networks.
Explore previous-paper coverage, trends and focused practice for Fibre-optic and Spectroscopic Instrumentation.
Newest papers appear first. Sort by year, question coverage or name.
| Paper | Year / session | Questions in this view | Open |
|---|---|---|---|
| Instrumentation Engineering (IN) 2026 | 2026 | 5 | View paper |
| Instrumentation Engineering (IN) 2025 | 2025 | 1 | View paper |
| Instrumentation Engineering (IN) 2024 | 2024 | 1 | View paper |
| Instrumentation Engineering (IN) 2023 | 2023 | 2 | View paper |
| Instrumentation Engineering (IN) 2022 | 2022 | 4 | View paper |
| Instrumentation Engineering (IN) 2021 | 2021 | 3 | View paper |
| Instrumentation Engineering (IN) 2019 | 2019 | 4 | View paper |
| Instrumentation Engineering (IN) 2018 | 2018 | 4 | View paper |
| Instrumentation Engineering (IN) 2017 | 2017 | 4 | View paper |
| Instrumentation Engineering (IN) 2016 | 2016 | 2 | View paper |
| Instrumentation Engineering (IN) 2015 | 2015 | 1 | View paper |
| Instrumentation Engineering (IN) 2014 | 2014 | 2 | View paper |
| Instrumentation Engineering (IN) 2013 [Session 1] | 2013 | 2 | View paper |
| Instrumentation Engineering (IN) 2013 [Session 2] | 2013 | 1 | View paper |
| Instrumentation Engineering (IN) 2013 [Session 3] | 2013 | 1 | View paper |
| Instrumentation Engineering (IN) 2013 [Session 4] | 2013 | 1 | View paper |
| Instrumentation Engineering (IN) 2011 | 2011 | 1 | View paper |
| Instrumentation Engineering (IN) 2010 | 2010 | 3 | View paper |
| Instrumentation Engineering (IN) 2009 | 2009 | 5 | View paper |
| Instrumentation Engineering (IN) 2008 | 2008 | 9 | View paper |
| Instrumentation Engineering (IN) 2007 | 2007 | 3 | View paper |
A varied preview from the papers represented in this selection, with every available option.
The core/cladding index difference of a single-mode optical fiber cable is 0.01. The refractive index of the material of the core is 1.5. The maximum angle of acceptance of the fiber is approximately equal to
Signals from fifteen thermocouples are multiplexed and each one is sampled once per second with a 16-bit ADC. The digital samples are converted by a parallel to serial converter to generate a serial PCM signal. This PCM signal is frequency modulated with FSK modulator with 1200 Hz as 1 and 960 Hz as 0. The minimum band allocation required for faithful reproduction of the signal by the FSK receiver without considering noise is