Light Mirrors and Lenses Class 8 Assertion and Reason Questions

Light Mirrors and Lenses Class 8 Assertion and Reason Questions

Light Mirrors and Lenses Class 8 Assertion and Reason Questions

Following questions are of Assertion (A), Reason (R) type questions. Choose the correct answer from the following options:

(a) Both A and R are true, and R is the correct explanation of A.

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

(c) A is true, but R is false.

(d) A is false, but R is true.

1. (A): A concave mirror can form both real and virtual images.

(R): Concave mirrors always produce images that are larger than the object.

Answer:

(c) A is true, but R is false.

2. (A): Convex lenses are used in magnifying glasses.

(R): Convex lenses converge light rays to form a virtual image that is larger than the object.

Answer:

(a) Both A and R are true, and R is the correct explanation of A

3. (A): Plane mirrors produce images that are always erect.

(R): The angle of incidence is equal to the angle of reflection for plane mirrors.

Answer:

(a) Both A and R are true, and R is the correct explanation of A

4. (A): The image formed by a convex mirror is always diminished.

(R): Convex mirrors have a reflecting surface that curves outward.

Answer:

(a) Both A and R are true, and R is the correct explanation of A

5. (A): A concave lens can produce a real image.

(R): Concave lenses always diverge light rays.

Answer:

(d) A is false, but R is true