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Science TNSB Mentoring
Class 10
Optics
Refraction through a lens
1.
Focal length of human eye
Question:
4
m.
Choose the best option:
1
.
Magnification of a convex lens is:
Positive
Zero
Negative
Either positive or negative
2
.
What is the nature and size of the image formed by a convex mirror when the object is between infinity and the pole?
Virtual, inverted and enlarged
Real, erect and same size
Virtual, erect and diminished
Real, inverted and enlarged
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