Physicist Interview Questions

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Physicist interview questions shared by candidates

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MAPPER
Python Programmer/Physicist was asked...June 29, 2016

About my thesis

1 Answers

I tried to explained what I did for my MSc. thesis. The interviews said "understood" several times, but the report from the HR said I didn't explain the concept "correctly". Less

MAPPER

Perform a physics problem on the whiteboard

1 Answers

with help i was able to get an anwser

Analogic

Where would you ike to be in 5 years ?

1 Answers

Empty question requires empty answer, bla, bla, bla

Princeton Plasma Physics Laboratory

Typically, questions surrounded technical content of the interview talk and also probed the expected area of expertise if this is not identical to the technical talk.

1 Answers

The interviewers seem to appreciate honesty and healthy discussion of various questions. Research-related questions sometimes do not have pat answers so some discussion is needed. That seemed to work ok. Less

TTP

Which is bigger, e^pi or pi^e?

1 Answers

Consider the function f(x)=e^x-x^e and examine its behaviour (turning points etc.). You can show that it is always greater than zero for x>0, so e^x is bigger. Less

SLAC National Accelerator Laboratory

they’ll go through your resume and ask you technical questions on skills you’ve listed.

1 Answers

bring a portfolio of projects if your work isn’t proprietary.

GE Healthcare
Physicist was asked...February 6, 2022

Q: Can you describe what part of a SPECT imaging system ensures the spatial specificity of the image?

1 Answers

The collimator, which allows only photons with the correct trajectory angle to enter the detector. Less

Draper

regular work experience

1 Answers

reasonable ok

NHS

What does the circuit in this diagram do?

1 Answers

Diagram was of an x-ray generator. I did not know this but was able to identify several components and explain what they do/how they work - e.g. transformers, feedback loops etc... Less

Applied Materials

We know from elementary physics that if a point charge is moving in the X direction, in an area where there is a magnetic field in the Z direction, the charge will move in a circle because of the lorentz force. Now, lets say that the charge has zero velocity, and an observer moving in the -X direction is looking at our point charge. He will see the charge moving in the +X direction, inside the magnetic field, in a straight line. How is this possible in light of the lorentz force?

1 Answers

The answer is that our observer will observe a different field than in the rest frame. We have to transform the electromagnetic tensor in order to know exactly what field the observer will see. In this case the observer will see an additional electric field that will cancel the effect of the lorentz force. Less

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