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.
260Hz
252Hz
248Hz
264Hz
258Hz
Correct answer is B
- When a tuning fork is loaded with wax, the frequency of the tuning fork decreases, I.e when the prongs are loaded, their inertia increases, resulting in decrease of vibrational frequency.
Beat = F2 - F1
4 = 256 - F1
F1 = 252Hz
i only
ii only
iii only
i and iii
ii and iii
Correct answer is D
No explanation has been provided for this answer.
When vibration occurs in air column, the distance between a node and an antinode is equal to
one-quarter of the wavelength
one-hall of the wavelength
the wave length
twice the wavelength
four-times the wavelength
Correct answer is A
No explanation has been provided for this answer.
120J
60Jg-1
120Jg-1
1500J
1500Jg-1
Correct answer is C
Heat energy = electrical energy
mL = I2Rt
5 x L = 2 x 2 x 5 x 30
L = 120Jg-1
Which of the following can be described as high tension transmission?
high resistance and low voltage
low current and high voltage
high current and low voltage
high voltage and zero current
high current and low resistance
Correct answer is B
No explanation has been provided for this answer.