Biophysics I. 2024 EM3

In which practice did we NOT want to measure the concentration of a solution?

• refractometry

• light absorption

• polarimetry

• light emission

What is the unit of the accomodation power?

• m

• cm

• dpt

• m^2

From which physical principle does Snell's law come?

• Huygens' principle

• Fermat's principle

• Fresnel's principle

• Biot's principle

The specific rotation is independent of...

• wavelength

• temperature

• type of material

• concentration

According to Hook's law, what kind of mathematical function describes the relationship between the displacement and the force causing this in the case of an oscillating system?

• linear proportionality

• inverse proportionality

• exponential function

• logarithmic function

How does the negative feedback influence the characteristics of an amplifier?

• the gain level is increased

• the transfer band widens

• the transfer band narrows

• the gain level remains the same

For which type of ionising radiation does indirect ionisation occur during its interaction with matter?

• alfa-radiation

• beta-radiation

• gamma-radiation

• all of them

Which dose concept is measured in Gy (gray)?

• Effective dose

• Dose equivalent

• Exposure

• Absorbed dose

Which physical quantity is NOT denoted by D?

• power of the lens

• absorbed dose

• spring constant

• index of refraction

How can we get more details from the specimen in a light microscope?

• increase the wavelength

• decrease the index of refraction between the sample and the objective lens

• increase the index of refraction between the sample and the objective lens

• decrease the numerical aperture of the objective lens