CBSE Class 7 Science Light: Shadows and Reflections (Class 7 NCERT New) Quiz 11

1. which of these are required to form the shadow of a ball

A torch B ball C screen D all of these

2. which of the following the non-luminous obejct

A sun B moon C stars D firefly

3. which of the following is an example of an opaque object

A clean water B plastic wrap C cardboard sheet D spectacle glass

4. Image formed in a pinhole camera is

A erect B inverted C parallel D none of these

5. Bending of light is called

A reflection B refraction C dispersion D scattering

6. If you can see light through an object it is called...

A opaque B plastic C transparent

7. An opaque object means that ...

A light passes through B no light passes through C some light passes through D you can see through it

8. Translucent objects let only some light pass thru?

A False B True

9. We can only see objects because...

A A light source illuminates the object B Our eyes illuminates the objects C The objects illuminate themselves

10. What does the moon do?

A produces light B reflects the suns light C produces heat