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Assertion & Reason Test: Ray Optics & Optical Instruments - 2

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10 Questions MCQ Test | Assertion & Reason Test: Ray Optics & Optical Instruments - 2

Assertion & Reason Test: Ray Optics & Optical Instruments - 2 for NEET 2023 is part of NEET preparation. The Assertion & Reason Test: Ray Optics & Optical Instruments - 2 questions and answers have been prepared according to the NEET exam syllabus.The Assertion & Reason Test: Ray Optics & Optical Instruments - 2 MCQs are made for NEET 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Assertion & Reason Test: Ray Optics & Optical Instruments - 2 below.
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Assertion & Reason Test: Ray Optics & Optical Instruments - 2 - Question 1

Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : The focal length of the convex mirror will increase, if the mirror is placed in water.Reason : The focal length of a convex mirror of radius R is equal to , f = R/2.

Detailed Solution for Assertion & Reason Test: Ray Optics & Optical Instruments - 2 - Question 1 Focal length of the spherical mirror does not depend on the medium in which it placed.
Assertion & Reason Test: Ray Optics & Optical Instruments - 2 - Question 2

Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : The image of an extended object placed perpendicular to the principal axis of a mirror, will be erect if the object is real but the image is virtual.Reason : The image of an extended object, placed perpendicular to the principal axis of a mirror, will be erect if the object is virtual but the image is real.

Assertion & Reason Test: Ray Optics & Optical Instruments - 2 - Question 3

Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : The image of a point object situated at the centre of hemispherical lens is also at the centre.Reason : For hemisphere Snell’s law is not valid.

Detailed Solution for Assertion & Reason Test: Ray Optics & Optical Instruments - 2 - Question 3 The rays from centre of hemisphere cut at the centre after refraction – Snell’s law is valid in each case of refraction.
Assertion & Reason Test: Ray Optics & Optical Instruments - 2 - Question 4

Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.

Assertion : If the rays are diverging after emerging from a lens; the lens must be concave.

Reason : The convex lens can give diverging rays.

Detailed Solution for Assertion & Reason Test: Ray Optics & Optical Instruments - 2 - Question 4 If the rays cross focal point of convex lens, they become diverging.
Assertion & Reason Test: Ray Optics & Optical Instruments - 2 - Question 5

Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.

Assertion : The optical instruments are used to increase the size of the image of the object.

Reason : The optical instruments are used to increase the visual angle.

Assertion & Reason Test: Ray Optics & Optical Instruments - 2 - Question 6

Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.

Assertion : Plane mirrors may form real images.

Reason : Plane mirrors form virtual images, if the object is real.

Assertion & Reason Test: Ray Optics & Optical Instruments - 2 - Question 7

Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.

Assertion : The image formed by a concave mirror is certainly real if the object is virtual.

Reason : The image formed by a concave mirror is certainly virtual if the object is real.

Detailed Solution for Assertion & Reason Test: Ray Optics & Optical Instruments - 2 - Question 7 The image of a real object may be real in the case of a concave mirror.
Assertion & Reason Test: Ray Optics & Optical Instruments - 2 - Question 8

Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.

Assertion : An object is placed at a distance of f from a convex mirror of focal length f its image will form at infinity.

Reason : The distance of image in convex mirror can never be infinity

Assertion & Reason Test: Ray Optics & Optical Instruments - 2 - Question 9

Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.

Assertion: The focal length of an equiconvex lens of radius of curvature R made of material of refractive index μ = 1.5, is R.

Reason : The focal length of the lens will be R/2.

Assertion & Reason Test: Ray Optics & Optical Instruments - 2 - Question 10

Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.

Assertion : The resolving power of a telescope is more if the diameter of the objective lens is more.

Reason : Objective lenses of large diameter collect more light.

Detailed Solution for Assertion & Reason Test: Ray Optics & Optical Instruments - 2 - Question 10 RP α diameter of objective.
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