CBSE Grade 10 Light MCQ

Parallel rays, from the top of a distant tree, incident on a concave mirror, form an image on the screen. The correct diagram showing the image is

• A

• B

• C

• D

In an experiment to trace the path of a ray of light passing through a rectangular glass slab, four students tabulated their observations as given below. Which student performed the experiment most correctly?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

For the refraction through a rectangular glass slab the diagram is given below. The angle of incidence, angle of emergence and angle of refraction are respectively

• X,P,M

• X,M,P

• Y,M,P

• Y,N,P

A student determined the focal length of a device 'X‘ by focusing a distant object on the screen as shown in the following diagram. Select the correct option.

• Device 'X‘ is a concave mirror and distance 'd‘ is its focal length

• Device 'X‘ is a concave mirror and distance 'd‘ is its radius of curvature

• Device 'X‘ is a convex lens and distance 'd‘ is its radius of curvature

• Device 'X‘ is a convex lens and distance 'd‘ is its focal length

Image formed by plane mirror is _______________

• Real and erect

• Real and inverted

• Virtual and erect

• Virtual and inverted

A concave mirror gives real, inverted and same size image if the object is placed at _______________

• At F

• At infinity

• At C

• Beyond C

The full length image of a distant tall building can be seen by using

• concave mirror

• convex mirror

• concave lens

• convex lens

Tags

NGSS.MS-PS4-2

If the magnification of a lens has positive value , the image is

• Real

• virtual and erect

• inverted

• none of these

The power of the lens is +2.5D. Its focal length in cm will be

• +40

• -40

• +80

• -80

The magnification produced by a rear view mirror that is used in the vehicles is

• less than 1

• more than 1

• equal to 1

• less than 1 or more than 1