The objective lens of microscope useConvex mirror-Concave lens-Concave mirror-Convex lens-

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Physics

Uses of Spherical Lens

The objective...

Question

The objective lens of microscope use

Concave lens

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Concave mirror

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Convex mirror

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Convex lens

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Solution

The correct option is D
Convex lens

Convex lens is a converging lens, that is, the light rays converge at a point when they pass through it. Due to this they are used in the applications where a sharp focus on the object is required, and hence they are used as the objective lens of the microscope.

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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.

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.

Q. Question 19
In which of the following, the image of an object placed at infinity will be highly diminished and point sized?

(a) Concave mirror only
(b) Convex mirror only
(c) Convex lens only
(d) Concave mirror, convex mirror, concave lens and convex lens

Which of the following can make a parallel beam (a) concave mirror as well as concave lens (b) convex mirror as well as convex lens (c) concave mirror as well as convex lens (d) convex mirror as well as concave lens

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

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The objective lens of microscope use

The correct option is D Convex lens Convex lens is a converging lens, that is, the light rays converge at a point when they pass through it. Due to this they are used in the applications where a sharp focus on the object is required, and hence they are used as the objective lens of the microscope.

The correct option is D
Convex lens

Convex lens is a converging lens, that is, the light rays converge at a point when they pass through it. Due to this they are used in the applications where a sharp focus on the object is required, and hence they are used as the objective lens of the microscope.