A Light Beam Is Shining on a Metal Target That

question 73

Multiple Choice

A light beam is shining on a metal target that has a work function of 2.20 eV.If a stopping potential of 1.30 V is required,what is the wavelength of the incoming monochromatic light? (h = 6.63 x 10^-34 J*s,c = 3.00 x 10⁸ m/s,1 eV = 1.60 x 10^-19 J,and 1 nm = 10^-9 m)

• A)355 nm
• B)497 nm
• C)744 nm
• D)1 421 nm

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Definitions:

Pars Intermedia

The intermediate lobe of the pituitary gland, involved in the production of melanocyte-stimulating hormone (MSH).

Parathyroid Glands

Small endocrine glands in the neck that produce parathyroid hormone, which regulates calcium levels in the blood.

Histological Stains

Chemical dyes used in microscopy to enhance visibility of biological tissues by highlighting specific components or structures.

Adrenal Cortex

The outer layer of the adrenal glands, producing vital hormones including cortisol and aldosterone.