Podcast
Questions and Answers
What term is used to describe materials that allow a large amount of light to pass through?
What term is used to describe materials that allow a large amount of light to pass through?
What is the term for the property that shows how light travels in a straight line?
What is the term for the property that shows how light travels in a straight line?
Which type of beam consists of light rays not meeting when travelling?
Which type of beam consists of light rays not meeting when travelling?
What is the term for the energy that makes vision possible?
What is the term for the energy that makes vision possible?
Signup and view all the answers
What are bodies that produce their own light referred to as?
What are bodies that produce their own light referred to as?
Signup and view all the answers
What is the speed at which light travels in air?
What is the speed at which light travels in air?
Signup and view all the answers
What is the name of an object that consists of a box painted black on the inside with a small hole at the other end?
What is the name of an object that consists of a box painted black on the inside with a small hole at the other end?
Signup and view all the answers
What is the area of darkness cast on a screen when an opaque object is placed in front of a light source called?
What is the area of darkness cast on a screen when an opaque object is placed in front of a light source called?
Signup and view all the answers
Which type of eclipse occurs when the earth comes between the moon and the sun in a straight line?
Which type of eclipse occurs when the earth comes between the moon and the sun in a straight line?
Signup and view all the answers
What type of reflection occurs when light rays fall on a smooth or polished surface?
What type of reflection occurs when light rays fall on a smooth or polished surface?
Signup and view all the answers
What is the first law of reflection?
What is the first law of reflection?
Signup and view all the answers
What is the change in direction or bending of light ray when it moves from one medium to another called?
What is the change in direction or bending of light ray when it moves from one medium to another called?
Signup and view all the answers
What is an image formed by the apparent intersection of two or more rays called?
What is an image formed by the apparent intersection of two or more rays called?
Signup and view all the answers
What is the name for the partial shadow surrounding an umbra formed by an opaque object between an external source of light and a screen?
What is the name for the partial shadow surrounding an umbra formed by an opaque object between an external source of light and a screen?
Signup and view all the answers
What is the name for an image formed by the actual intersection of two or more rays?
What is the name for an image formed by the actual intersection of two or more rays?
Signup and view all the answers
What is the type of eclipse where only part of the earth or moon is covered?
What is the type of eclipse where only part of the earth or moon is covered?
Signup and view all the answers
