Question

in which of the following cases magnification is possible
a) washing soda b) baking soda c) brine solution d) blue vitriol
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Answer 1

Answer:

Which one of the following shortcut key is used to paste

a file? Tick mark the correct answer.

(a) Ctrl + C

(b) Ctrl + P

(c) Ctrl + V

(d) Ctrl + X

2. Which of the following is a valid file extension for

Notepad file? Tick mark

Explanation:

Plz follow me

Answer 2

Answer:

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Explanation:

Magnification of a concave lens or a convex mirror is always positive because they always form virtual and erect images. It can be negative or positive for a convex lens or a concave mirror.

Positive magnification for virtual images and negative magnification for real images is true only when a single optical device is used. When used as a combination, a virtual and inverted image may be formed. One such example is a compound microscope.