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.
Emission spectra are caused by
kinetic energy of moving atoms
potential energy of an electron in an atom
transition of an electron from a higher energy level to a lower energy level
transition of an electron from a lower energy level to higher energy level
transition of excited protons in the nucleus
Correct answer is C
No explanation has been provided for this answer.
The power dissipated in L is greater than zero
The power dissipated in R is zero
The sum of the power dissipated in L and C is equal to that in R
The sum of the power dissipated in L and C is greater than in R
The sum of the power dissipated in L and C is zero
Correct answer is E
No explanation has been provided for this answer.
directly proportional to I
directly proportional to the resistances of the wires
directly proportional to the square of the resistances of the wires
inversely proportional to I
inversely proportional to the resistance of the wires
Correct answer is B
No explanation has been provided for this answer.
0.025m
0.250m
2.500m
25.000m
250.000m
Correct answer is E
No explanation has been provided for this answer.
I and II only
I and III only
I, II and III only
II, III and IV only
I, II, III and IV
Correct answer is B
No explanation has been provided for this answer.