Light rays from a point object radiate only at the front
1) Light rays from a point object
Answer is:
radiate only at the front
Explanation:
Related Optics MCQ with Answers
Answer is:
all distances are measured from the bottom of the mirror or the lens
Explanation:
According to Cartesian sign convention all distances are measured from the bottom of the mirror or the lens
Answer is:
rightwards with respect to x-axis and normal to the principal axis (x-axis) of the mirror/lens are taken as positive
Explanation:
According to Cartesian sign convention the heights measured rightwards with respect to x-axis and normal to the principal axis (x-axis) of the mirror/lens are taken as positive
Answer is:
f = R/2, R=radius of curvature
Explanation:
The?focal?point F and?focal length?f of a positive (convex) lens, a negative (concave) lens, a concave?mirror, and a convex?mirror. The?focal length?of an optical system is a measure of how strongly the system converges or diverges light.
Answer is:
1/f=1/u + 1/v
Explanation:
According to the mirror equation 1/f=1/u + 1/v