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The lens formula relating the image distance, p , to the focal length, f , and object distance, s , is
The magnification of a lens is
A magnifying glass with focal length 15 cm is placed 10 cm above a stamp. The image of the stamp is located
Email Service Provider
A company that offers email services, including sending, receiving, and storing emails, to individuals and organizations.
Electronic Mailbox
An electronic storage area or service where emails sent to an individual's email address are received and can be viewed or managed.
Attach
The process of adding or linking files, documents, or other items to an email, message, or digital document, facilitating the sharing of additional information.
File
A container in a computer system used to store data or information, identifiable by a unique name and possibly an extension indicating its type.
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