Light Shadows and Reflections Class 7 Very Short Question Answer

Light Shadows and Reflections Class 7 Very Short Question Answer

Light Shadows and Reflections Class 7 Very Short Question Answer

Question 1.

What type of image does a pinhole camera produce?

Answer:

A pinhole camera produces an upside-down (inverted) image.

Question 2.

What phenomenon causes the image in a plane mirror to appear reversed?

Answer:

The phenomenon is called lateral inversion.

Question 3.

At what time of day is a person's shadow typically the shortest?

Answer:

A person's shadow is typically shortest at noon (12 PM).

Question 4.

Why do we not see the shadow of a bird flying high in the sky?

Answer:

We do not see the shadow because the light source is too•far away and the bird is too high up.

Question 5.

What is a periscope used for?

Answer:

A periscope is used to see objects that are not directly visible, often used in submarines.