Light: Mirrors and Lenses class 8 MCQ

class 8 science

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General Instructions

Your test contains multiple-choice questions with only one answer-type question. There are a total of 10 questions

This is a 20 min test. Please make sure you complete it in the stipulated time
You can finish this test any time using the 'Submit' button.

1. Match the column

p -> ii, q-> i, r -> i, s-> ii

p - > i, q -> ii, r -> i, s -> ii

p -> ii, q -> i, r -> ii, s -> i

p -> i, q -> ii, r -> ii, s -> i

2. which of the following is incorrect

Concave lens always form virtual image

Convex mirrors always form virtual image

Plane mirrors forms a erect and virtual image

none of the above

3. X is observing his image is Plane mirror. The distance between the image and plane mirror is 5 m. If X moves away from the plane mirror by 2 m, Then the distance between X and his image

10m

6 m

12m

14 m

4. What is true about Plane mirror?

It shows lateral inversion

The distance of the object from the mirror is equal to the distance of the image from the mirror, that is, image distance is equal to object distance.

The image formed by a plane mirror is always virtual and erect

all the above

5. The angle between the incident ray and the normal is called:

Angle of reflection

Angle of incidence

Critical angle

Reflected angle

6. Which of these is incorrect about images?

Real images can be formed on the screen

Virtual images cannot be formed on screen

A convex lens always produces a real image.

None of these

7. What is lateral inversion?

Upside-down image

Enlargement of image

Reduction of image size

Left and right reversal

8. An image formed by a lens is erect. Such an image could be formed by a

convex lens provided the image is smaller than object.

concave lens provided the image is of the same size.

concave lens provided the image is larger than object

concave lens provided the image is smaller than object.

9. You are provided with a convex mirror, a concave mirror, a convex lens and a concave lens. You can get an inverted image from

both concave lens and convex lens.

both concave mirror and convex mirror.

both concave mirror and convex lens.

both convex mirror and concave lens

10. Which mirror would a dentist use to view inside a patient’s mouth?

Plane mirror

Concave mirror

Convex mirror

none of the above

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