List of top Questions asked in TS PGECET- 2026

A photodiode with a bandgap energy of \(1.43\ \text{eV}\) has a cut-off wavelength approximately equal to

An increase in reverse bias of a photodiode results in

In a Michelson interferometer, one fringe shift corresponds to a mirror displacement of

Numerical Aperture (NA) of an optical fiber is given by

In a mass spectrometer, ions are separated based on their

Beer--Lambert law states that absorbance is proportional to

If the transmittance of a sample is \(10\%\), the absorbance is

A PI controller is preferred when

Feed-forward control improves system performance by

Defuzzification in fuzzy control refers to

In a hydraulic system, power is transmitted using

Compared to hydraulic systems, pneumatic systems have

The transfer function of a zero-order hold system is

Which of the following is not a valid state-space representation?

The corner frequencies of a system having transfer function \[ G(s)=\frac{100(1+0.2s)}{1+0.5s} \] are

In a mechanical translational system, mass corresponds to which electrical element in force-voltage analogy?

Frequency is most accurately measured using

Phase difference between two signals is commonly measured using

The limiting error of an instrument is usually specified as

For a standard second-order system, the \(\xi\) value for underdamped response is

If the Nyquist plot encircles the point \((-1,0)\) twice in the clockwise direction and the open-loop system has one RHP pole, then the number of closed-loop RHP poles is

Time delay in control systems is usually represented as

If a voltmeter has a full-scale deflection of \(100\,\text{V}\) and the smallest division is \(0.5\,\text{V}\), its resolution is

Sensitivity of an instrument is defined as

A carrier of frequency \(1\,\text{MHz}\) is amplitude modulated by a \(5\,\text{kHz}\) signal. The bandwidth of the AM signal is