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Questions and Answers
What will be the distance of the image if an object placed 10 cm away forms an image 5 cm away?
What will be the distance of the image if an object placed 10 cm away forms an image 5 cm away?
What is the focal length of a convex mirror, if an object at 25 cm forms an image 40 cm in front of the mirror?
What is the focal length of a convex mirror, if an object at 25 cm forms an image 40 cm in front of the mirror?
What is the focal length of the mirror if an object placed at 40 cm forms an image at 4 cm?
What is the focal length of the mirror if an object placed at 40 cm forms an image at 4 cm?
If an object 100 cm away forms an image 16 cm in front of the mirror, what is the image distance?
If an object 100 cm away forms an image 16 cm in front of the mirror, what is the image distance?
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What is the focal distance of the mirror if an image of an object forms at 20 cm?
What is the focal distance of the mirror if an image of an object forms at 20 cm?
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What is the object's distance if a concave mirror with a 50 cm focal length forms an upright image of length 12 cm from an object of 10 cm length?
What is the object's distance if a concave mirror with a 50 cm focal length forms an upright image of length 12 cm from an object of 10 cm length?
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What is the nature of the image formed by an object in front of a concave mirror?
What is the nature of the image formed by an object in front of a concave mirror?
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What happens when the object's distance equals the focal distance in a concave mirror?
What happens when the object's distance equals the focal distance in a concave mirror?
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What type of image is formed when the object's distance is less than the focal distance in a concave mirror?
What type of image is formed when the object's distance is less than the focal distance in a concave mirror?
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What must be true for a concave mirror to form a real image?
What must be true for a concave mirror to form a real image?
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Study Notes
Mirror Reflections
- If an object is placed 10cm in front of a mirror, its image will be formed 10cm behind the mirror.
- For a convex mirror with a focal length of 50cm, if an object is placed 25cm in front of it, its image will be formed 40cm behind the mirror.
- If an object is placed 40cm in front of a mirror and its image is formed 4mm behind the mirror, the focal length of the mirror is 20cm.
- If an object is placed 100cm in front of a mirror and its image is formed 16cm behind the mirror, the image distance is 25cm.
- For a convex mirror, if the image of an object is formed 20cm behind the mirror, the focal length of the mirror is 35cm.
Concave Mirror
- If an object is placed in front of a concave mirror, its image is
- Real and inverted
- Smaller than the object
- If the focal length of a concave mirror is equal to the object distance, the image is formed at infinity.
- If the object distance is less than the focal length of a concave mirror, the image is
- Enlarged
- Real
- If the object distance is less than the focal length of a concave mirror, the image is smaller.
Convex Mirror
- The image formed by a convex mirror is virtual and smaller than the object.
- The image distance is less than the focal length of the mirror.
- The image is formed between the pole and the focus of the mirror.
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Description
Test your understanding of mirror reflection concepts with this quiz. Calculate the focal length of a concave mirror and determine the distance of the image formed.
