Table of Contents
- 1 What is the position of image formed when object is placed at 25 cm from concave mirror of focal length 15 cm?
- 2 When an object is placed at a distance of 25cm from a convex mirror?
- 3 What is the position of the image when an object is placed at a distance of 20cm from a concave mirror of focal length 30cm?
- 4 Which of the following is correct when an object is placed at a distance of 20cm from a convex mirror of focal length 25cm?
- 5 When an object is kept at a distance of 30cm from a concave mirror?
- 6 What is the focal length of convex lens is 25 cm?
What is the position of image formed when object is placed at 25 cm from concave mirror of focal length 15 cm?
Therefore the image is real inverted . It is formed 6cm away from the mirror in front of the mirror.
When an object is placed at a distance of 25cm from a convex mirror?
When an object is placed at a distance of 25 cm from a mirror, the magnification is m1. The object is moved 15 cm away with respect to the earlier position, magnification becomes m2, If m2m1=4, the focal length of the mirror is.
Where will the image be formed for an object placed at 25 cm from the optical Centre of the convex lens if the focal length of the lens is 12.5 cm?
Therefore, object should be placed at a distance of 12.5 cm infront of the lens.
What is the position of the image when an object is placed at a distance of 20cm from a concave mirror of focal length 30cm?
When an object is placed at a distance of 20 cm from a concave mirror of focal length 20 cm, the position of the image is at infinity.
Which of the following is correct when an object is placed at a distance of 20cm from a convex mirror of focal length 25cm?
An object is kept at a distance 20 cm from a convex mirror of focal length 20 cm. The image will form at. Distance of image is coming out to be +10cm hence it is 10 cm behind the mirror and image will be virtual. Hence, option (d) is correct.
When an object is placed at a distance of 30cm from a concave mirror?
If the object distance (u) is 30 cm and image distance (v) is also 30cm. Then, f=15cm. Hope you got your answer.
When an object is kept at a distance of 30cm from a concave mirror?
When an object is kept at a distance of 30 cm from a concave mirror, the image is formed at a distance of 10 cm from the mirror. When an object is kept at a distance of 30 cm from a concave mirror, the image is formed at a distance of 10 cm from the mirror.
What is the focal length of convex lens is 25 cm?
At what distance from the optical centre of the lens an object be placed to obtain a virtual image of twice the size? Ans. 125 cm in front of the lens.
Where must an object be placed in front of a convex lens of focal length 25 cm to obtain a real and two times magnified image?
Therefore, object should be placed at a distance of 0.16 m infront of the lens.