Light, Shadows and reflections

Which object does not let light pass through?

• Transparent

• Translucent

• Opaque

• Not Transparent or translucent

State the answer

1. This source of light is emitted even when the object is not hot

2. This source of light is emitted the object gets heated

• Incandescent and

  Luminescent, respectively

• Luminous and

  Non- luminous,

  respectively

• Fire and Water,

  respectively

• Luminescent and Incandescent,

  respectively

• All of the above

When should we not look at the sun?

• In the dark

• At Noon

• During the Lunar and Solar Eclipse

• Always

Ruhi observed the shadow of a tree at 8:00 AM, 12:00 noon and 3:00 PM. Which of the following statements is the closest to her observation about the shape and size of the shadow?

• The shape of the shadow of the tree changes but the size remains the same.

• The size of the shadow of the tree changes but the shape remains the same.

• Both the size and shape of the shadow of the tree changes.

• Neither the shape nor the size of the shadow changes.

Rubber is _____ but glass is ___________.

Repeat sentence in answer.

Which of the following can never form a circular shadow?

• A ball

• A shoe box

• A Flat disc

• An Ice cream cone

Two students while sitting across the table look down onto its top surface, they notice they could see their own and each others image. The table top is likely to be made up of?

• Unpolished wood

• Red stone

• Glass sheet.

• Wood-top covered with cloth

Through a pinhole camera, the image is..........

• Inverted and diminished

• Real, Upside down

• A shadow

• Diminished and fake

Can you think of creating a shape that will give a circular shadow if held in 1 way, and rectangular shadow if held in another way.

• Geoid

• Sphere

• Rectangle

• Cylinder

A football match is being played at night in a stadium with lights on you can see the shadow of the football kept at the ground, but cannot see its shadow, when its kicked high in the air. Why?

• Because it's near the light. And therefore cannot be seen.

• The shadow of the object cannot be caught if the screen and the object are very far from each other.

• All of the above

• None of the object