10+ Research Fellow Interview Questions and Answers

Yes, polychromatic X-ray sources can be used in X-ray diffraction experiments.

• Polychromatic X-ray sources can be used in X-ray diffraction experiments to obtain a wide range of diffraction angles.

• The use of polychromatic X-rays can result in overlapping diffraction peaks, making it difficult to interpret the data.

• Monochromatic X-ray sources are preferred for X-ray diffraction experiments as they provide sharper and more distinct diffraction peaks.

• Polychromatic X-ray sources a...read more

The dielectric constant is measured by applying an electric field to a material and measuring the resulting polarization.

• Dielectric constant is a measure of a material's ability to store electrical energy in an electric field.

• It is determined by comparing the capacitance of a capacitor with the material as the dielectric to the capacitance of the same capacitor with a vacuum as the dielectric.

• The dielectric constant is calculated as the ratio of the capacitance with the mater...read more

Yes, I have hands-on experience in PCR, electrophoresis, and molecular biology techniques.

• Performed PCR amplification of DNA samples in a research lab

• Ran electrophoresis gels to analyze DNA fragments

• Conducted molecular cloning experiments to insert DNA sequences into plasmids

My specialization area is in artificial intelligence and machine learning.

• I have expertise in developing and implementing machine learning algorithms.

• I have experience in natural language processing and computer vision.

• I have worked on projects involving deep learning and neural networks.

• I have published research papers on machine learning and its applications.

• I have collaborated with industry partners to develop AI-based solutions.

• I keep up-to-date with the latest developmen...read more

The major problem in Bihar is poverty and lack of development.

• Poverty is rampant in Bihar with a poverty rate of 33.7% in 2020.

• Lack of development in infrastructure, education, and healthcare.

• High crime rate and corruption are also major issues in Bihar.

• Frequent floods and droughts affect the agricultural sector and livelihoods of people.

• Migration of people to other states in search of better opportunities.

• Poor governance and political instability.

• Caste-based discrimination a...read more

The dielectric constant of a material changes with the frequency of the applied electric field.

• Dielectric constant is a measure of a material's ability to store electrical energy in an electric field.

• The dielectric constant of a material is frequency-dependent because the polarization mechanisms that contribute to it vary with frequency.

• At low frequencies, the dielectric constant is dominated by electronic polarization, while at high frequencies, it is dominated by ionic pola...read more

My specialization is in the field of artificial intelligence and machine learning.

• I have expertise in developing and implementing machine learning algorithms for various applications.

• I have worked on natural language processing, computer vision, and predictive modeling.

• I have experience in programming languages such as Python, R, and Java.

• I have published research papers in top-tier conferences and journals in the field.

• I have also mentored students and collaborated with indu...read more

Conductivity in semiconductor materials refers to their ability to conduct electricity.

• Semiconductors have a conductivity between that of conductors and insulators.

• Conductivity can be increased by doping the semiconductor with impurities.

• The conductivity of semiconductors can also be affected by temperature.

• Examples of semiconductor materials include silicon, germanium, and gallium arsenide.

SST stands for Sea Surface Temperature. An inductor is a passive electronic component that stores energy in a magnetic field.

• SST refers to the temperature of the top millimeter of the ocean's surface.

• Inductors are commonly used in electronic circuits to store and release energy in the form of magnetic fields.

• The unit of inductance is the Henry (H).

• Examples of inductors include coils of wire and ferrite core inductors.

Bragg's law relates the angle of incidence of X-rays to the spacing of crystal lattice planes in reciprocal space.

• Bragg's law is used to determine the interatomic spacing in a crystal lattice.

• It states that constructive interference occurs when the path difference between two waves is an integer multiple of the wavelength.

• The law is expressed as nλ = 2d sinθ, where n is an integer, λ is the wavelength of the X-rays, d is the spacing between the crystal lattice planes, and θ i...read more

HPLC Principle is a technique used to separate, identify, and quantify components in a mixture based on their interactions with a stationary phase and a mobile phase.

• HPLC stands for High Performance Liquid Chromatography

• It involves passing a liquid sample through a column packed with a stationary phase material

• Different components in the sample interact differently with the stationary phase, leading to separation

• The separated components are detected and quantified as they elu...read more

My research areas have primarily focused on environmental sustainability, renewable energy, and climate change.

• Environmental sustainability

• Renewable energy

• Climate change

Dyes are used in RT PCR to visualize and quantify the amplification of DNA fragments.

• Dyes are fluorescent molecules that bind to double-stranded DNA during PCR amplification.

• They allow for real-time monitoring of the amplification process.

• Common dyes used include SYBR Green and TaqMan probes.

• SYBR Green binds to any double-stranded DNA, while TaqMan probes are specific to the target sequence.

Genes in MTB and NTM are important for understanding drug resistance and virulence.

• Genes in Mycobacterium tuberculosis (MTB) and non-tuberculous mycobacteria (NTM) play a crucial role in drug resistance mechanisms.

• Understanding the genetic differences between MTB and NTM can help in developing targeted therapies.

• Examples of important genes include those involved in cell wall synthesis, efflux pumps, and drug metabolism.