501 prompts matching "Radiation, and the surfaces that emit and absorb best"
Practice set: Problems on signal loss and fibre geometry
Act as my SS3 Physics tutor. Give me five practice questions on problems on signal loss an
WAEC prep: The advantages of fibre over copper cable
Act as a WAEC Physics examiner. I am in SS 3. Set me five exam-style questions on the adva
Spot my mistake: Assuming light bends round the fibre rather than reflecting
Act as my SS3 Physics tutor. Show me a worked solution on assuming light bends round the f
Quiz: Stimulated emission and population inversion
Act as my SS3 Physics tutor and quiz me on stimulated emission and population inversion. A
Let me explain: Coherence, monochromaticity and collimation
I have just studied coherence, monochromaticity and collimation in my SS3 Physics class. L
Practice set: Problems on laser output and photon count
Act as my SS3 Physics tutor. Give me five practice questions on problems on laser output a
Quiz: Deriving the dimensions of a compound quantity
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Worked example: Thrust from a stated exhaust speed and mass flow rate
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Spot my mistake: The subject combinations an engineering course in Nigeria requires
Act as my SS3 Physics tutor. Make a short statement about the subject combinations an engi
Worked example: Calculating the flux density at a point near a long straight wire
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Let me explain: The force on a moving charge in a magnetic field
I have just studied the force on a moving charge in a magnetic field in my SS3 Physics cla
Worked example: Calculating the force on a conductor placed at an angle to a field
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Let me explain: Why a.c. is described by an r.m.s. rather than an average value
I have just studied why a.c. is described by an r.m.s. rather than an average value in my
Worked example: The de Broglie wavelength of an electron at a stated speed
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Let me explain: Why a geostationary orbit sits above the equator
I have just studied why a geostationary orbit sits above the equator in my SS3 Physics cla
Worked example: The period of a satellite at a stated orbital radius
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Let me explain: How the time base produces a trace
I have just studied how the time base produces a trace in my SS3 Physics class. Let me exp
Let me explain: The transistor as a current amplifier
I have just studied the transistor as a current amplifier in my SS3 Physics class. Let me
Worked example: The kinetic energy gained across a stated accelerating voltage
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Worked example: The minimum wavelength from a stated tube voltage
Act as my SS3 Physics tutor. Show me a full worked example on the minimum wavelength from