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Assertion & Reason Test: Light- Reflection & Refraction - 1 - Class 10 MCQ


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15 Questions MCQ Test Physics for Class 10 - Assertion & Reason Test: Light- Reflection & Refraction - 1

Assertion & Reason Test: Light- Reflection & Refraction - 1 for Class 10 2024 is part of Physics for Class 10 preparation. The Assertion & Reason Test: Light- Reflection & Refraction - 1 questions and answers have been prepared according to the Class 10 exam syllabus.The Assertion & Reason Test: Light- Reflection & Refraction - 1 MCQs are made for Class 10 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Assertion & Reason Test: Light- Reflection & Refraction - 1 below.
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Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 1

Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A): Plane mirror may form real image.

Reason (R): Plane mirror forms virtual image, if object is real.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 1
Plane mirror may form real image, if object is virtual.

Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 2

Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

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

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

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 2
The image of real object may be real in case of concave mirror.
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Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 3

Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A): Refractive index of glass with respect to air is different for red light and violet light.

Reason (R): Refractive index of a pair of media depends on the wavelength of light used.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 3
Refractive index of any pair of media is inversely proportional to wavelength of light. Hence,

where, λv and λr are the wavelengths of violet and red light. μv and μr are refractive index of violet and red light.

Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 4

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : Keeping a point object fixed, if a plane mirror is moved, the image will also move.

Reason : In case of a plane mirror, distance of object and Its image is equal from any point on the mirror.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 4
Assertion (A) is false but reason (R) is true.
Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 5

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : If a spherical mirror is dipped in water, its focal length remains unchanged.

Reason : A laser light is focused by a converging lens. There will be a significant chromatic aberration.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 5
Assertion (A) is true but reason (R) is false.
Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 6

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : Plane mirror may form real image.

Reason : Plane mirror forms virtual image, if objects is real.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 6
Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A). Plane mirror forms virtual image of real object and real image of virtual object.
Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 7

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : Light travels faster in glass than in air.

Reason : Glass is denser than air.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 7
Assertion (A) is false but reason (R) is true.
Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 8

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : The height of an object is always considered positive.

Reason : An object is always placed above the principal axis in this upward direction.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 8
Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 9

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : When a concave mirror is held under water, its focal length will increase.

Reason : The focal length of a concave mirror is independent of the medium in which it is placed.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 9
Assertion (A) is false but reason (R) is true.
Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 10

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : A convex mirror is used as a driver’s mirror.

Reason : Because convex mirror’s field of view is large and images formed are virtual, erect and diminished.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 10
Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 11

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : A virtual image cannot be photographed.

Reason : Only real objects are photographed.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 11
Assertion (A) is true but reason (R) is false. An image is a plane mirror is virtual and it can be photographed.
Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 12

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : Mirror formula can be applied to a plane mirror.

Reason : A plane mirror is a spherical mirror of infinite focal length.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 12
Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 13

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : For observing traffic at back, the driver mirror is convex mirror.

Reason : A convex mirror has much larger field of view than a plane mirror.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 13
Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 14

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : When the object moves with a velocity 2 m/s, its image in the plane mirror moves with a velocity of 4 m/s.

Reason : The image formed by a plane mirror is as far behind the mirror as the object is in front of it.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 14
Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 15

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : The small object, to be seen in a microscope, is kept within the two foci of its objective.

Reason : In this case, the image formed by the objective is nearer to the eyepiece.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - 1 - Question 15
Assertion (A) is true but reason (R) is false. Object is placed between F and 2F of objective lens.
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