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.
The diagram above represents a transverse travelling wave. Which two points are 180° out of phase?
A and E
B and D
C and F
D and H
Correct answer is D
No explanation has been provided for this answer.
To obtain a virtual, erect and magnified image from a thin converging lens, an object must be placed
between the focus and the lens
at the focus
between the focal length and twice the focal length
beyond twice the focal length
Correct answer is A
When the object is placed between the optical centre of the lens and the focal length, the image formed is virtual, erect and magnified.
1358mm
957mm
760mm
638mm
Correct answer is D
Let hQ and ρQ be the least length and the density of Q1
while h and ρ are the length and density of mercury respectively.
h×ρ×g=hQ×ρQ×g
76cm×13.6×10=hQ×16.2×10
hQ=76×13.6×1016.2×10
hQ=10336162
hQ≊
Which electrical device is illustrated above?
a.c. generator
a.c. motor
d.c. generator
d.c. motor
Correct answer is C
No explanation has been provided for this answer.
