Rays from the sun converge at a point 25 cm behind a convex lens. The distance at which an object be placed in front of the lens to get a virtual image, is:
Rays from the sun converge at a point 25 cm behind a convex lens. The distance at which an object be placed in front of the lens to get a virtual image, is:
Options
More than 50 cm
Marking Scheme
- 11 mark
Hint
Recall the properties of convex lenses and the conditions for forming virtual images.
Quick Oral Answer
To get a virtual image, the object must be placed between the lens and the focus. Since the focal length is 25 cm, the object must be placed more than 50 cm away from the lens.
Analysis & Explanation
The focal length of the convex lens is 25 cm. To get a virtual image, the object must be placed between the lens and the focus. Therefore, the distance at which an object be placed in front of the lens to get a virtual image is more than 50 cm.
Common Mistakes
- 1Placing the object at the focal point or beyond
Interesting Facts
Convex lenses are used in magnifying glasses and binoculars
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Frequently Asked Questions
How many marks does this question carry in CBSE Class 10 Science 2026?
This question carries 1 mark in the CBSE Class 10 Science 2026 examination.
Which chapter does this question come from in Science?
This question is from the chapter "Light — Reflection and Refraction" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Refraction of Light" from CBSE Class 10 Science.
What type of question is this in the CBSE Class 10 Science 2026 paper?
This is a MCQ question from Section C in the CBSE Class 10 Science 2026 paper.