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

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

Test Description

## 15 Questions MCQ Test Online MCQ Tests for Class 10 - Assertion & Reason Test: Light- Reflection & Refraction

Assertion & Reason Test: Light- Reflection & Refraction for Class 10 2024 is part of Online MCQ Tests for Class 10 preparation. The Assertion & Reason Test: Light- Reflection & Refraction questions and answers have been prepared according to the Class 10 exam syllabus.The Assertion & Reason Test: Light- Reflection & Refraction 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 below.
Solutions of Assertion & Reason Test: Light- Reflection & Refraction questions in English are available as part of our Online MCQ Tests for Class 10 for Class 10 & Assertion & Reason Test: Light- Reflection & Refraction solutions in Hindi for Online MCQ Tests for Class 10 course. Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free. Attempt Assertion & Reason Test: Light- Reflection & Refraction | 15 questions in 30 minutes | Mock test for Class 10 preparation | Free important questions MCQ to study Online MCQ Tests for Class 10 for Class 10 Exam | Download free PDF with solutions
Assertion & Reason Test: Light- Reflection & Refraction - 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): The focal length of the convex mirror will increase, if the mirror is placed in water.Reason (R): The focal length of a convex mirror of radius R is equal to, f = R/2.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - Question 1
Focal length of the spherical mirror does not depend on the medium in which it is placed.
Assertion & Reason Test: Light- Reflection & Refraction - 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): An object is placed at a distance of f from a convex mirror of focal length f, its image will form at infinity.Reason (R): The distance of image in convex mirror can never be infinity.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - Question 2
The distance of image in convex mirror is always finite.
 1 Crore+ students have signed up on EduRev. Have you?
Assertion & Reason Test: Light- Reflection & Refraction - 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): If the rays are diverging after emerging from a lens; the lens must be concave.Reason (R): The ST lens can give diverging rays.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - Question 3
If the rays crossing focal point of convex lens, become diverging.
Assertion & Reason Test: Light- Reflection & Refraction - 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 : A point object is placed at a distance of 26 cm from a convex mirror of focal length 26 cm. The image will not form at infinity.

Reason : For above given system the equation 1/u + 1/v = 1/f gives v = ∞

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - Question 4
Assertion (A) is true but reason (R) is false.
Assertion & Reason Test: Light- Reflection & Refraction - 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 both plane mirror and object are moved through a distance x , then the image moves through a distance 2x .

Reason : When the object is fixed and plane mirror is moved through a distance x . Then the image is also moves through the distance 2x .

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - Question 5
Assertion (A) is true but reason (R) is false.
Assertion & Reason Test: Light- Reflection & Refraction - 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 : Large concave mirrors are used to concentrate sunlight to produce heat in solar cookers.

Reason : Concave mirror converges the light rays falling on it to a point.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - Question 6
Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A). Concave mirror converges the light rays falling on it to a point. So large concave mirrors are used to concentrate sunlight to produce heat in solar cookers.
Assertion & Reason Test: Light- Reflection & Refraction - 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 : 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: Light- Reflection & Refraction - Question 7
Assertion (A) is false but reason (R) is true If the rays cross focal point of convex lens, they become diverging.
Assertion & Reason Test: Light- Reflection & Refraction - 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 : A ray of light incident along the normal to the plane mirror retraces its path after reflection from the mirror.

Reason : A ray of light along the normal has angle of incidence as π /2 and hence, it retraces its own path after reflection from mirror.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - Question 8
Assertion (A) is true but reason (R) is false. Angle of incidence = Angle between incident ray normal to the mirror = 00
Assertion & Reason Test: Light- Reflection & Refraction - 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 : Refractive index has no units.

Reason : The refractive index is a ratio of two similar quantities.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - Question 9
Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
Assertion & Reason Test: Light- Reflection & Refraction - 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 : 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 - Question 10
Assertion (A) is false but reason (R) is true. Focal length is the property of mirror and is independent of the medium in which it is placed.
Assertion & Reason Test: Light- Reflection & Refraction - 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 : If both object and plane mirror are moved through a distance x , then the image moves through a distance 2x .

Reason : If object is fixed and plane mirror is moved through a distance x then the image also moves through a distance 2x .

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - Question 11
Assertion (A) is true but reason (R) is false.
Assertion & Reason Test: Light- Reflection & Refraction - 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 : Red light travels faster in glass than green light.

Reason : The refractive index of glass is less for red light than for green light.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - 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 - 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 : 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: Light- Reflection & Refraction - Question 13
Assertion (A) is true but reason (R) is false The image of real object may be real in case of concave mirror.
Assertion & Reason Test: Light- Reflection & Refraction - 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 : A convex mirror is used as a driver’s mirror.

Reason : Convex mirrors have a wider field of view as they are curved outwards. They also give an erect, though diminished image.

Detailed Solution for Assertion & Reason Test: Light- Reflection & Refraction - 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 - 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 : As light travels from one medium to another, the frequency of light does not change.

Reason : Because frequency is the characteristic of source.

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

## Online MCQ Tests for Class 10

518 tests
Information about Assertion & Reason Test: Light- Reflection & Refraction Page
In this test you can find the Exam questions for Assertion & Reason Test: Light- Reflection & Refraction solved & explained in the simplest way possible. Besides giving Questions and answers for Assertion & Reason Test: Light- Reflection & Refraction, EduRev gives you an ample number of Online tests for practice

518 tests