Light, Shadow, & Reflection

Light travels in ________.

• straight line

• curved line

• zig-zag line

• randomly

When an opaque object comes in the path of light it forms ____________.

• an image with colors

• shadow

• black and white image

• depends on the colour of the light

Which types of objects do not allow light to pass through them?

• Translucent

• Opaque

• Transparent

• Penumbra

Which is an example of a translucent object?

• A thin sheet of paper

• A clear glass

• A thin iron sheet

• All of these

Bouncing back of light from shining surfaces is called

• Reflection

• Refraction

• Bending

• Dispersion

What is lateral inversion?

• Image becomes inverted

• Image bends laterally

• Right of the object appears left of the image

• All of these happen

Which letters of English alphabet will not show lateral inversion?

• I, O, U

• N, Z, X

• I, X, E

• A, E, I

Which is a device to image the sun?

• Plane mirror

• Pinhole camera

• A straight pipe

• Glass slab

Which of the following is a natural source of light?

• Firefly (Jugnu)

• Tube light

• torch

• Electric bulb

Out of these, which one is not a man-made luminous body?

• Electric bulb

• Burning candle

• The Sun

• Oil lamp