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An object 50cm tall is placed on the principal axis of a convex lens. It's 20cm tall image is formed on the screen placed at a distance of 10cm from the lens. Calculate the focal length of the lens.?
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An object 50cm tall is placed on the principal axis of a convex lens. ...
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An object 50cm tall is placed on the principal axis of a convex lens. ...
Given:
Height of object (h1) = 50 cm
Height of image (h2) = 20 cm
Distance of the screen (v) = 10 cm
To find:
Focal length (f) of the convex lens
Formula:
1/f = 1/v - 1/u
Where,
u = distance of object from the lens
Solution:
We know that,
h1/u = h2/v
Therefore,
u = h1 * v / h2
u = 50 * 10 / 20
u = 25 cm
Using the formula,
1/f = 1/v - 1/u
1/f = 1/10 - 1/25
1/f = 15/250
f = 16.67 cm
Therefore, the focal length of the convex lens is 16.67 cm.
Answer:
The focal length of the convex lens is 16.67 cm.
Height of object (h1) = 50 cm
Height of image (h2) = 20 cm
Distance of the screen (v) = 10 cm
To find:
Focal length (f) of the convex lens
Formula:
1/f = 1/v - 1/u
Where,
u = distance of object from the lens
Solution:
We know that,
h1/u = h2/v
Therefore,
u = h1 * v / h2
u = 50 * 10 / 20
u = 25 cm
Using the formula,
1/f = 1/v - 1/u
1/f = 1/10 - 1/25
1/f = 15/250
f = 16.67 cm
Therefore, the focal length of the convex lens is 16.67 cm.
Answer:
The focal length of the convex lens is 16.67 cm.
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An object 50cm tall is placed on the principal axis of a convex lens. It's 20cm tall image is formed on the screen placed at a distance of 10cm from the lens. Calculate the focal length of the lens.?
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An object 50cm tall is placed on the principal axis of a convex lens. It's 20cm tall image is formed on the screen placed at a distance of 10cm from the lens. Calculate the focal length of the lens.? 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 object 50cm tall is placed on the principal axis of a convex lens. It's 20cm tall image is formed on the screen placed at a distance of 10cm from the lens. Calculate the focal length of the lens.? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An object 50cm tall is placed on the principal axis of a convex lens. It's 20cm tall image is formed on the screen placed at a distance of 10cm from the lens. Calculate the focal length of the lens.?.
An object 50cm tall is placed on the principal axis of a convex lens. It's 20cm tall image is formed on the screen placed at a distance of 10cm from the lens. Calculate the focal length of the lens.? 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 object 50cm tall is placed on the principal axis of a convex lens. It's 20cm tall image is formed on the screen placed at a distance of 10cm from the lens. Calculate the focal length of the lens.? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An object 50cm tall is placed on the principal axis of a convex lens. It's 20cm tall image is formed on the screen placed at a distance of 10cm from the lens. Calculate the focal length of the lens.?.
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