Physics Questions and Answers
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
50N
40N
30N
20N
10N
Correct answer is C
No explanation has been provided for this answer.
photoelectric effect
thermionic emission
field emission
secondary emission
radioactive emission
Correct answer is B
The process by which free electrons are emitted from the surface of a metal when external heat energy is applied is called thermionic emission.
has three pro tons and two neutrons
has two protons and one neutron
has two protons and three neutrons
has one proton and two neutrons
cannot exist because it has the same mass number as tritium
Correct answer is E
No explanation has been provided for this answer.
Bqv
Bq\(\frac{v}{m}\)
Bqvm
mv\(\frac{B}{q}\)
\(\frac{mv}{Bq}\)
Correct answer is A
The formula for Force on the particle is Bqv.
In the AC circuit diagram above, the resonance frequency is
5000π Hz
2500π Hz
5000/π Hz
2500/π Hz
Correct answer is D
No explanation has been provided for this answer.