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An image by concave mirror is 4 times greater than the object. If radius of curvature is 20cm,determined object distance in front of the mirror.?
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An image by concave mirror is 4 times greater than the object. If radi...
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An image by concave mirror is 4 times greater than the object. If radi...
Given:
To find:
Formula Used:
Solution:
We know that magnification (m) = -v/u
Given, m = 4, therefore -v/u = 4
Also, R = -20cm
Using the formula R = 2f, we can calculate the focal length of the mirror:
2f = R
f = R/2 = -20/2 = -10cm
Now, we can use the formula:
m = -v/u = 4
-10/u = 4
u = -10/4 = -2.5cm
But, object distance cannot be negative. Therefore, the object must be placed at a distance of 2.5cm in front of the mirror.
Answer:
- Magnification (m) = 4
- Radius of curvature (R) = -20cm (concave mirror)
To find:
- Object distance (u)
Formula Used:
- Magnification (m) = -v/u
- Radius of curvature (R) = 2f
Solution:
We know that magnification (m) = -v/u
Given, m = 4, therefore -v/u = 4
Also, R = -20cm
Using the formula R = 2f, we can calculate the focal length of the mirror:
2f = R
f = R/2 = -20/2 = -10cm
Now, we can use the formula:
m = -v/u = 4
-10/u = 4
u = -10/4 = -2.5cm
But, object distance cannot be negative. Therefore, the object must be placed at a distance of 2.5cm in front of the mirror.
Answer:
- Object distance (u) = 2.5cm
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An image by concave mirror is 4 times greater than the object. If radius of curvature is 20cm,determined object distance in front of the mirror.?
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An image by concave mirror is 4 times greater than the object. If radius of curvature is 20cm,determined object distance in front of the mirror.? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about An image by concave mirror is 4 times greater than the object. If radius of curvature is 20cm,determined object distance in front of the mirror.? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An image by concave mirror is 4 times greater than the object. If radius of curvature is 20cm,determined object distance in front of the mirror.?.
An image by concave mirror is 4 times greater than the object. If radius of curvature is 20cm,determined object distance in front of the mirror.? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about An image by concave mirror is 4 times greater than the object. If radius of curvature is 20cm,determined object distance in front of the mirror.? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An image by concave mirror is 4 times greater than the object. If radius of curvature is 20cm,determined object distance in front of the mirror.?.
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