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.
dn
dn
dn−2
d(n−1)n
Correct answer is A
n = R.dA.d
R.d = R.dn=dn
When an object is placed at the centre of curvature of a concave mirror, its image is formed at
the focus
infinity
the centre of curvature
a distance twice the radius of curvature
Correct answer is C
No explanation has been provided for this answer.
Which of the following phenomena is not a direct consequence of rectilinear propagation of light?
lunar and solar eclipses
images of objects in a pin hole camera
diffraction of light
shadows of opaque object
Correct answer is C
No explanation has been provided for this answer.