16. What do we call the image that cannot be obtained on a screen? *
1 point
real image
virtual image
erect image
laterally inverted image
17. Where is the image formed in a concave mirror when object is behind the center of curvature? *
1 point
behind the mirror
in front of the mirror
left side of the mirror
right side of the mirror
18. Show mathematically, the 1st law of reflection. *
1 point
∠i = ∠i
∠i = ∠r
19. The line which is drawn perpendicular to the mirror (smooth surface) at the point of incident ray is called. *
1 point
refracted ray
parallel line
normal line
perpendicular line
20. The incident ray, the reflected ray and normal all lie in the________plane. *
1 point
different
same
21. which one is not a characteristics of an image formed in a plane mirror. *
1 point
It is virtual.
It is erect.
It is of same size as the object.
inverted
Answers
Answered by
1
Answer:
1) answer=virtual image.
2) Answer=When an object is placed behind the center of curvature, a real image is formed between the center of curvature and focus. The size of the image is smaller as compared to that of the object.
3) answer=
At the point of incidence where the ray strikes the mirror, a line can be drawn perpendicular to the surface of the mirror; this line is known as a normal line. ... The angle between the reflected ray and the normal is known as the angle of reflection, qr.
4) answer=same
5) answer=it is of same size of the object.
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