Question

Refraction of light

all of the above
Question 11 (4 points)
For a convex lens to form a virtual image the object must be located at some dista
True
False
Question 12 (4 points)
Which of the following objects can set a piece of paper on fire in the presence of:
double concave lens

Answer 1

Convex lens forms a virtual image when the object is within its focal length. Double concave lens cannot set a piece of paper on fire.

Step-by-step explanation:

Question 11:

For a convex lens to form a virtual image, the object must be located at some distance from the lens. This is because a convex lens can only form a virtual image when the object is located within the focal length of the lens. When the object is located beyond the focal point, a real image is formed.

Question 12:

A double concave lens does not have the ability to set a piece of paper on fire or ignite anything. The properties of a double concave lens do not converge light rays to a single point, which is necessary for ignition or combustion.

Learn more about refraction of light