Assertion Reason Questions of Class 10 Science Chapter 10 Light Reflection and Refractions PDF Download

Free PDF Download of CBSE Class 10 Science Chapter 10 Light Reflection and Refractions Assertion Reason Questions for Class 10 Science. Assertion and Reason Questions for Class 10 Science with Answers were Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 10 Science Light Reflection and Refractions to know their preparation level.

Light Reflection and Refractions Class 10 Assertion Reason Questions

The following questions consist of two statements – Assertion (A) and Reason (R). Answer these questions by selecting the appropriate option given below:
(a) If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
(b) If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
(c) If Assertion is correct but Reason is incorrect.
(d) If Assertion is incorrect but Reason is correct

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 the above-given system the equation 1/u+1/v= 1/f gives v = ∞.

(c) If Assertion is correct but Reason is incorrect.


Assertion: Keeping a point object fixed, if a plane mirror is moved, the image will also move.
Reason: In the case of a plane mirror, the distance between object and Its image is equal from any point on the mirror.

(d) If Assertion is incorrect but Reason is correct


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 the plane mirror is moved through a distance x. Then the image also moves through the distance 2x.

(c) If Assertion is correct but Reason is incorrect.


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.

(c) If Assertion is correct but Reason is incorrect.


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.

(a) If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.


Assertion: A plane mirror may form a real image.
Reason: Plane mirror forms virtual image if objects are real.

(b) If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.


Assertion: Refractive index has no units.
Reason: The refractive index is a ratio of two similar quantities.

(a) If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.


Assertion: When a concave mirror is held underwater, its focal length will increase.
Reason: The focal length of a concave mirror is independent of the medium in which it is placed.

(d) If Assertion is incorrect but Reason is correct


Assertion: A convex mirror is used as a driver’s mirror.
Reason: Because the convex mirror’s field of view is large and images formed are virtual, erect, and diminished.

(a) If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.


Assertion: A virtual image cannot be photographed.
Reason: Only real objects are photographed.

(c) If Assertion is correct but Reason is incorrect.


Assertion: Propagation of light through an optical fibre is due to total internal reflection taking place at the core-clade interface.
Reason: Refractive index of the material of the core

(b) If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.


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