Table of Contents
- 1 What is the position of image when object is placed at a distance of 20 cm from concave mirror of radius of curvature 40cm?
- 2 Is placed at a distance of 20cm?
- 3 What is the distance between the mirror and the object?
- 4 How do you find the distance of an object from a mirror?
- 5 Is the second reflection of a concave mirror negative or positive?
- 6 How do you find the image distance of a mirror?
What is the position of image when object is placed at a distance of 20 cm from concave mirror of radius of curvature 40cm?
Since the object is at focus therefore the image will be formed at infinity .
What is the position of the image when an object is placed at a distance of 40 cm from a concave mirror of focal length 20cm?
An object is placed at a distance of 40 cm in front of a concave mirror with a focal length of 20 cm. The image produced will be real, inverted and of the same size.
Is placed at a distance of 20cm?
An object is placed at a distance of 20 cm from a convex mirror or radius of curvature 40 cm. Convex mirror always forms a virtual, erect and diminished image. Therefore, the distance of the image is always less than the focal length and the image always lies between the pole and the focus of the convex mirror.
When an object is placed at a distance of 40 cm from the concave mirror the image is one fourth of the object the distance of the image from the mirror is?
Hence the object distance is 60 cm.
What is the distance between the mirror and the object?
For plane mirrors, the object distance (is equal to the image distance. That is the image is the same distance behind the mirror as the object is in front of the mirror. If you stand a distance of 2 meters from a plane mirror, you must look at a location 2 meters behind the mirror in order to view your image.
What is the distance between the mirror and the image?
Answer: The image generated by a plane mirror is the same distance behind the mirror as the object in front of it. ∴ Object distance from the mirror equals image distance from the mirror. The distance will be 12 cm.
How do you find the distance of an object from a mirror?
- u is the Object distance.
- v is the Image distance.
- f is the Focal Length given by f=R2. f = R 2.
- R is the radius of curvature of the spherical mirror.
What is the distance in front of a concave mirror?
An image an by a concave mirror is 4 times greater than the object. If the radius of curvature 20 cm, determine the object distance in front of the mirror! The object distance = 12.5 cm. 4. A 1-cm high object is placed 10 cm from a concave mirror with the focal length, f = 15 cm. Determine :
Is the second reflection of a concave mirror negative or positive?
it is negative Image of concave mirror becomes object for plane mirror. Second reflection from plane mirror image is formed at same distance from plane as is the distance of object. Now according to question, second image is formed at object itself.
What is the distance from the light bulb to the mirror?
A 4.0-cm tall light bulb is placed a distance of 8.3 cm from a concave mirror having a focal length of 15.2 cm. (NOTE: this is the same object and the same mirror, only this time the object is placed closer to the mirror.) Determine the image distance and the image size.
How do you find the image distance of a mirror?
To determine the image distance, the mirror equation will have to be used. The following lines represent the solution to the image distance; substitutions and algebraic steps are shown. 1/f = 1/do + 1/d i. 1/(15.2 cm) = 1/(8.3 cm) + 1/d i. 0.0658 cm-1 = 0.120 cm-1 + 1/d i-0.0547 cm-1 = 1/d i