Question

Qno.3 Which of the following statements most accurately describes virtual image formation?
a)An enlarged, virtual, and inverted image can be formed by a positive lens when the object is
placed inside the focal point.
b) A virtual image is formed at the position where the paths of the principal rays cross when
projected backward from their paths beyond the lens.
c) A virtual image does not form a visible projection on a screen and cannot be seen by most optical
instruments except for the human eye.
d) A virtual, upright, and reduced image is formed by a single positive lens regardless of the object
position​

Answer 1

Answer:

a is the correct answer

Explanation:

Answer 2

Answer:

The following statement most accurately describes virtual image formation : (b) A virtual image is formed at the position where the paths of the principal rays cross when projected backward from their paths beyond the lens.

Explanation:

• A virtual image  can be formed at the position where the paths of the principal rays cross when projected backward from their paths beyond the lens.
• Although a virtual image does not form a visible projection on a screen, it has a definite position and size. so, it is no sense "imaginary",
• A virtual image can be "seen" or imaged by the human eye, camera, or most of the other optical instruments.

• A reduced, virtual ,upright  image is formed by a single negative lens regardless of the object position.
• An enlarged , upright virtual image can be formed by a positive lens by placing the object inside the principal focal point.
• Virtual images are always Upright and can't be inverted.