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.

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

Assertion (A) is true but reason (R) is false.

Assertion (A) is false but reason (R) is true.

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.

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

Assertion (A) is true but reason (R) is false.

Assertion (A) is false but reason (R) is true.

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.

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

Assertion (A) is true but reason (R) is false.

Assertion (A) is false but reason (R) is true.

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 = ∞

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

Assertion (A) is true but reason (R) is false.

Assertion (A) is false but reason (R) is true.

Both Assertion and Reason are false.

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 .

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

Assertion (A) is true but reason (R) is false.

Assertion (A) is false but reason (R) is true.

Both Assertion and Reason are false.

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.

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

Assertion (A) is true but reason (R) is false.

Assertion (A) is false but reason (R) is true.

Both Assertion and Reason are false.

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.

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

Assertion (A) is true but reason (R) is false.

Assertion (A) is false but reason (R) is true.

Both Assertion and Reason are false.

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.

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

Assertion (A) is true but reason (R) is false.

Assertion (A) is false but reason (R) is true.

Both Assertion and Reason are false.

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.

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

Assertion (A) is true but reason (R) is false.

Assertion (A) is false but reason (R) is true.

Both Assertion and Reason are false.

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.

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

Assertion (A) is true but reason (R) is false.

Assertion (A) is false but reason (R) is true.

Both Assertion and Reason are false.

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 .

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

Assertion (A) is true but reason (R) is false.

Assertion (A) is false but reason (R) is true.

Both Assertion and Reason are false.

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.

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

Assertion (A) is true but reason (R) is false.

Assertion (A) is false but reason (R) is true.

Both Assertion and Reason are false.

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.

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

Assertion (A) is true but reason (R) is false.

Assertion (A) is false but reason (R) is true.

Both Assertion and Reason are false.

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.

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

Assertion (A) is true but reason (R) is false.

Assertion (A) is false but reason (R) is true.

Both Assertion and Reason are false.

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.

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

Assertion (A) is true but reason (R) is false.

Assertion (A) is false but reason (R) is true.

Both Assertion and Reason are false.

Assertion and Reason Test: Light- Reflection and Refraction Free MCQ Practice Test with Solutions

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