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Subjects
Science CBSE
Class 10
Light reflection and refraction
Textbook questions
3.
Exercises III
Exercise condition:
4
m.
Choose the correct answer
:
1
.
No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be
convex
plane
either plane or convex
concave
2
.
Which of the following lenses would you prefer to use while reading small letters found in a dictionary?
A convex lens of focal length 5 cm
A concave lens of focal length 5 cm
A concave lens of focal length 50 cm
A convex lens of focal length 50 cm
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