Ch-11: Light, Shadows and Reflections

Rectilinear propagation of light means

• light bends after striking a smooth surface

• light travels in a straight line

• light travels in a curvilinear line

• both a and b

which of the characteristics is not exhibited by the shadow of an object?

• erect

• can be formed on screen

• same colour as the object

• can be bigger than the object

Tags

NGSS.4-PS4-2

which of the following objects can cast a dark shadow?

• a lighted bulb

• a wooden door

• a glass pane

• both a and b

A plane mirror form an image of an object because it ........ light from the object

• absorbs

• reflects

• passes

• emits

Tags

NGSS.MS-PS4-2

which of the following the non-luminous obejct

• sun

• moon

• stars

• firefly

which of the following is an example of an opaque object

• clean water

• plastic wrap

• cardboard sheet

• spectacle glass

Image formed in a pinhole camera is

• erect

• inverted

• parallel

• none of these

Tags

NGSS.4-PS4-2

Bending of light is called

• reflection

• refraction

• dispersion

• scattering

When the Sun is behind you, your shadow is ...

• behind you

• in front of you

• at the side of you

• not there

Tags

NGSS.5-ESS1-2

Opaque is?

• Material that allows light to pass through

• Light made by nature

• Material that allows no light to pass through

Tags

NGSS.MS-PS4-2