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.
For a short sighted person, light rays from a point on a very distant object is focused
in front of the retina
on the retina by a converging lens
behind the retina by a diverging lens
in front of the retina, a distance 2F from the lens
Correct answer is A
No explanation has been provided for this answer.
20cm
15cm
10cm
5cm
Correct answer is C
F = \(\frac{uv}{u + v}\); v = 2u
20 = \(\frac{ux - 2u}{u + (-2u)}\); u = 10cm
reflection only
refraction only
diffraction and interference
reflection and refraction
reflection and diffraction
Correct answer is A
No explanation has been provided for this answer.
0.75cm
4.00cm
8.00cm
12.00cm
Correct answer is D
\(\frac{\text {object height}}{\text{image height}}\) = \(\frac{\text {object distance}}{\text{image distance}}\)
\(\frac{3}{\text{image height}}\) = \(\frac{10}{40}\)
Image height = 12cm
Shadows and eclipses result from the
refraction of light
rectilinear propagation of light
defraction of light
reflection of light
Correct answer is B
No explanation has been provided for this answer.