In Order for a Lens to Produce a Real Image,the

question 61

Multiple Choice

In order for a lens to produce a real image,the light rays from the object

• A)must actually be focused at the image location
• B)come to a stop at the image location.
• C)appear to be focused at the image location.
• D)must first travel in a straight line parallel to the axis.
• E)will always be focused at the image location.

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Definitions:

PGP

Pretty Good Privacy, a data encryption and decryption computer program that provides cryptographic privacy and authentication for data communication. PGP is often used for securing emails.

Encryption

Encoding information or data to protect it against access by unauthorized individuals.

Public-key Encryption

An encryption method that uses a pair of keys, one for encrypting the message (public key) and one for decrypting it (private key).

VoIP

Voice over Internet Protocol, a technology that allows voice calls to be made over the internet, converting analog voice signals into digital data packets.