Physics
Identify the incorrect statement :
- A real image is formed due to actual intersection of the rays refracted by the lens.
- A virtual image can be obtained on the screen.
- A virtual image is erect with respect to the object.
- A real image is inverted with respect to the object.
Refraction Lens
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Answer
A virtual image can be obtained on the screen.
Reason — A virtual image cannot be obtained on a screen because they are formed by the apparent intersection of rays rather than the actual convergence of rays.
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Related Questions
A ray of light parallel to the principal axis for a concave lens after refraction :
- passes through the second focus
- passes through the first focus
- appears to pass through the second focus
- appears to come from the second focus
Which of the ray diagrams are correct ?
1.
2.
3.
4.
A ray diagram for a convex lens is shown below. In this manner, a convex lens is used in :
- camera
- cinema
- burning glass
- terrestrial telescope
For an object placed at a distance 20 cm in front of a convex lens, the image is at a distance 20 cm behind the lens. The focal length of the convex lens is:
- 20 cm
- 10 cm
- 15 cm
- 40 cm.