Physics
Grade-10
Easy
Question
An image of an object located at infinity was formed by a concave lens. The magnification of the image _____.
- Is greater than 1
- Is less than 1
- Is negative
- Tends to 0
Hint:
For a concave lens, magnification of the image depends on the size and position of the object.
For an object located at infinity, formed by a concave lens, a virtual and erect, highly diminished(size tend to zero), point sized image is formed.
The correct answer is: Tends to 0
If an image of an object located at infinity was formed by a concave lens, the magnification of the image tends to zero.
- In a concave lens, magnification of the image depends on the size and position of the object.
- The image formed on the opposite side shows a magnified view.
- The magnification of the image kept at infinity distance in a concave lens will tend to zero.
Related Questions to study
Physics
The magnification of produced by a convex lens is – 4. This indicates that the image is ______.
The magnification of produced by a convex lens is – 4. This indicates that the image is ______.
PhysicsGrade-10
Physics
An image of height 4 m is formed by a convex lens of an object of height 2 m. The magnification is _____.
An image of height 4 m is formed by a convex lens of an object of height 2 m. The magnification is _____.
PhysicsGrade-10
Physics
An object of height 2 m is located at a distance of 50 cm from a convex lens of focal length 25 cm. The image is of height ____ m.
An object of height 2 m is located at a distance of 50 cm from a convex lens of focal length 25 cm. The image is of height ____ m.
PhysicsGrade-10
Physics
The image of an object located at a distance of 25 cm towards the left of a concave lens is formed at a distance of 5 cm at the same side of the lens. The magnification produced by the lens is ____.
The image of an object located at a distance of 25 cm towards the left of a concave lens is formed at a distance of 5 cm at the same side of the lens. The magnification produced by the lens is ____.
PhysicsGrade-10
Physics
The magnification produced by a concave lens is always ____.
The magnification produced by a concave lens is always ____.
PhysicsGrade-10
Physics
Which of the following is correct?
Which of the following is correct?
PhysicsGrade-10
Physics
Which of the following is a formula to measure the magnification produced by a lens?
Which of the following is a formula to measure the magnification produced by a lens?
PhysicsGrade-10
Physics
What is the unit of measurement of magnification?
What is the unit of measurement of magnification?
PhysicsGrade-10
Physics
Magnification is mathematically given by ____, H is the height of the image and h is the height of the object.
Magnification is mathematically given by ____, H is the height of the image and h is the height of the object.
PhysicsGrade-10
Physics
“The radius of a convex lens is always negative.”
This statement is _____.
“The radius of a convex lens is always negative.”
This statement is _____.
PhysicsGrade-10
Physics
A _____ image is always formed at the opposite side of a lens, and a _______ image is always formed at the same side of a lens as the object.
A _____ image is always formed at the opposite side of a lens, and a _______ image is always formed at the same side of a lens as the object.
PhysicsGrade-10
Physics
An object is located in front of a convex lens of focal length 53 cm at a distance of 106 cm. The image of this object will be formed at a distance of ____ cm from the lens.
An object is located in front of a convex lens of focal length 53 cm at a distance of 106 cm. The image of this object will be formed at a distance of ____ cm from the lens.
PhysicsGrade-10
Physics
An object is situated at an infinite distance from a convex lens of focal length 55 cm. Its image will be formed _____.
An object is situated at an infinite distance from a convex lens of focal length 55 cm. Its image will be formed _____.
PhysicsGrade-10
Physics
An object is situated at an infinite distance from a convex lens of focal length 55 cm. Its image will be formed at a distance of ___ cm from the lens.
An object is situated at an infinite distance from a convex lens of focal length 55 cm. Its image will be formed at a distance of ___ cm from the lens.
PhysicsGrade-10
Physics
The radius of curvature of a convex lens is 190 cm. Its focal length is ____ cm.
The radius of curvature of a convex lens is 190 cm. Its focal length is ____ cm.
PhysicsGrade-10