12 Questions
What does a phasor represent?
A quantity that varies sinusoidally with time
Why is a blackbody referred to as a full radiator?
It emits radiation covering the entire electromagnetic spectrum
What is the function of a NAND logic gate?
Outputs LOW if any input is HIGH
How is a hydraulic lift powered?
By applying hydraulic pressure on oil-filled cylinders
In simple harmonic motion, what does the total energy of a particle depend on?
Acceleration and mass
What does the half-life of a radioactive element signify?
The time taken for 50% of the nuclei to disintegrate
What property of a quantity does a phasor represent?
Sinusoidal variation with time
Why is a blackbody known as a full radiator?
It covers the entire electromagnetic spectrum
What is the output of a NAND logic gate when all inputs are HIGH?
LOW
How is a hydraulic lift able to lift heavy objects?
By transmitting pressure through oil-filled cylinders
What is the expression for the total energy of Simple Harmonic Motion (SHM) in terms of acceleration?
$E = \frac{1}{2} m\omega^2 A^2$
If the half-life of a radioactive element is 100 days, how long will it take for 87.5% of the initial nuclei to decay?
175 days
Test your knowledge on phasors, blackbodies, and NAND logic gates with this quiz based on Chapter 10 of Physics for STD.XII. Questions cover concepts like phasors as rotating vectors, blackbodies as full radiators, and the definition of NAND logic gates.
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