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.
An insulated rod when rubbed with a material acquires
a negative charge if it is made of glass and rubbed with silk
no charge if it is made of glass and rubbed with fur
no charge if it is made of copper and rubbed with silk
a positive charge if it is made of copper and rubbed with fur
Correct answer is B
No explanation has been provided for this answer.
Which of the following statements is CORRECT about the earth's magnetic field?
the angle of dip is the angle which a freely suspended magnet makes with the vertical
the angle of declination is the angle between the magnetic meridian and the geographic meridian
the angle of declination is the angle which a magnetic compass makes with the magnetic meridian
the angle of inclination is the difference between the angle of dip and the angle of declination
Correct answer is B
No explanation has been provided for this answer.
beats
echoing
resonance
reverberation
Correct answer is C
No explanation has been provided for this answer.
330.0m
335.4m
660.0m
670.8m
Correct answer is B
v = \(\lambda\)F
260 x 1.29 =335.4ms-1
Echo time = \(\frac{2}{2}\) = 1sec.
distance = v x t
= 335.4 x 1 = 335.4m
2Hz
4Hz
8Hz
258Hz
Correct answer is B
F = F2 - F1
= 260 - 256
= 4Hz