High quality lens system for optical instrument is made by using ..............

Concave and convex lens

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Convex lens

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Concave lens

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Concave and convex mirror

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Solution

The correct option is A Concave and convex lens
$\begin{matrix} High quality lens system for optical instrument is made by using concave and convex lens. Hence option A) Convex and concave lens is correct. \end{matrix}$

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Why focal length of convex mirror and convex lens is positive while concave mirror and concave lens negative?

Question 7

You are provided with a convex mirror, a concave mirror, a convex lens and a concave lens. You can get an inverted image from

(a) both concave lens and convex lens.

(b) both concave mirror and convex mirror.

(d) Both convex mirror and concave lens.

Question 4

You are provided with a concave mirror, a convex mirror, a concave lens and a convex lens. To obtain an enlarged image of an object you can use either

(a) concave mirror or convex mirror.

(b) concave mirror or convex lens.

(d) concave lens or convex lens.

Q. The magnification produced by a spherical lens and a spherical mirror is + 2.0.
(a) The lens and mirror are both concave
(b) The lens and mirror are both convex
(c) The lens is convex but the mirror is concave
(d) The lens is concave but the mirror is convex

Q. Which type of telescope can be made using a concave mirror, convex mirror, plane mirror and a lens? Draw diagrams of these telescopes.

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High quality lens system for optical instrument is made by using ..............

The correct option is A Concave and convex lens High quality lens system for optical instrument is made by using concave and convex lens. Hence option A) Convex and concave lens is correct.

The correct option is A Concave and convex lens
$\begin{matrix} High quality lens system for optical instrument is made by using concave and convex lens. Hence option A) Convex and concave lens is correct. \end{matrix}$