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 force per unit charge experienced at a point in a field is the
gravitational field strength
electric potential
electric field intensity
magnetic field strength
Correct answer is C
Electric intensity at a point is defined as the force experienced per unit positive charge at a point placed in the electric field.
I
II
III
IV
Correct answer is B
No explanation has been provided for this answer.
The inverse of the time required for a wave to complete one full cycle is called
wavelength
period
frequency
amplitude
Correct answer is C
The time required to complete one full cycle is the period; the inverse of the period gives the frequency.
6.6cm
11.1cm
13.3cm
20.0cm
Correct answer is C
Given, image size = 3U
object size = U
focal length = 10cm
lens to object distance = \(\frac{focal length \times object size}{image size}\)
= \(\frac{10 \times u}{3u} = 3.33\)
distance between image and object = 10 + 3.33 = 13.33cm
17
18
19
20
Correct answer is A
The number of images formed = \(\frac{360}{n}\) where the value gotten is odd
else, = \(\frac{360}{n} -1\).
Solving, we have that \(\frac{360}{20} = 18\)
Hence, the no of images formed is 18 - 1 = 17.