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Higher Physics Questions with complete solution

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Higher Physics Questions with complete solution Higher Physics Absolute zero - correct answer The minimum temperature theoretically attainable, 0 K, equivalent to -273.15 °C. Absorbed dose - correct answer The energy absorbed from a radioactive source per unit mass of tissue. Accele...

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  • October 19, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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Higher Physics
Absolute zero - correct answer ✔The minimum temperature theoretically
attainable, 0 K, equivalent to -273.15 °C.


Absorbed dose - correct answer ✔The energy absorbed from a radioactive
source per unit mass of tissue.


Acceleration - correct answer ✔The rate of change of velocity


amplifier - correct answer ✔An electronic circuit with at least one input and
one output, that is designed to process the waveform obtained from a physical
quantity (such as a sound) and produce an output that is an enlarged
(amplified) copy of this waveform.


amplitude - correct answer ✔The maximum displacement of the medium
from its mean position, measured in metres


angle of incidence - correct answer ✔angle between the incident ray and the
normal


angle of refraction - correct answer ✔angle between the refracted ray and
the normal


binding energy - correct answer ✔energy needed to split a nucleus into its
separate nucleons


breakdown voltage - correct answer ✔the limit of operation of a reverse
biased diode

, upthrust - correct answer ✔The upwards force (sometimes called the
buoyancy) acting on an object immersed in a fluid, due to the difference in
pressure (and hence force) acting on its upper and lower surfaces.


capacitance - correct answer ✔The ratio of electric charge to potential
difference between any two conductors separated by an insulating material.
The capacitance of a system of conductors describes the ability of the system
to store electric charge.


critical angle - correct answer ✔the angle of incidence for a light ray, below
which total internal reflection occurs.


depletion layer - correct answer ✔The area surrounding the p-n junction of a
diode where the electrons have combined with the holes leaving no free
charges.


differential mode - correct answer ✔A mode of operation of an op-amp
where the output of the op-amp Vo depends on the difference between the
voltage V1 applied to the inverting input, and the voltage V2 applied to the
non-inverting input.


diffraction - correct answer ✔An effect that causes waves to bend as they go
past the end of an obstacle or through a small gap in a barrier.


equivalent dose - correct answer ✔A quantity used to compare the biological
effects of different types of radiation. It is equal to the absorbed dose
multiplied by the radiation weighting factor of the radiation.


internal resistance - correct answer ✔The opposition to current in a source of
electrical energy.

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