An Object Is Placed at a Distance of 30 Cm

question 59

Multiple Choice

An object is placed at a distance of 30 cm from a thin convex lens along its axis.The lens has a focal length of 10 cm.What are the values,respectively,of the image distance and magnification?

• A)60 cm and 2.0
• B)15 cm and 2.0
• C)60 cm and -0.50
• D)15 cm and -0.50

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Definitions:

Singlet

A term in spectroscopy describing a state where all electrons in an atom or molecule are paired, leading to no net electron spin.

Triplet

A quantum state of a molecule or atom in which its spin multiplicity equals three, often used in the context of electron configurations and spectroscopy.

Alkynyl Carbon

A carbon atom triple-bonded to another carbon atom, found in alkynes, a type of hydrocarbon with general formula CnH2n-2.

Chemical Shift

In nuclear magnetic resonance (NMR) spectroscopy, a measure of the difference in resonant frequency of a nuclear spin relative to a standard.