Quantum Mechanics

It is a branch of physics that includes various areas of study based on quantum theory which deals with matter and electromagnetic radiation, and the interactions between them.

• Optics

• Nuclear Physics

• Thermodynamics

• Quantum Physics

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He is the one who created the principle of gravity.

• Isaac Newton (1643-1727)

• Galileo Galilei (1564-1642)

• Albert Einstein (1879-1955)

• James Clerk Maxwell (1831-1871)

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When a photon falls on a surface what factor of photon determines whether Photoelectric effect takes place

• Energy

• Frequency

• Wavelength

• All of the above

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The wavelength is defined as:

• the distance traveled by a progressive wave in a second

• the distance traveled between corresponding points on adjacent waves in a period

• the distance traveled by a progressive wave in a half period

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The number of wavelengths that pass a point each per second is:

• frequency
• period
• longitudinal 
• transverse wave 

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When the frequency of a wave increases, what happens to the wavelength?

• The wavelength is not directly affected by the frequency of a wave.
• The wavelength increases.
• The wavelength decreases.
• More specific information is needed to form a conclusion about the wavelength.

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A wave with a frequency of 1.150 x 10^3 Hz has a wavelength of

• 2.7 x 10^5 m

• 2.51 m

• 2.61 x 10^5 m

• 50 m

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Calculate the energy of a gamma ray photon whose frequency is 5.02 x 10²⁰ Hz?

• 4.73 x 10⁷² J

• 2.07 x 10 6 J

• 3.33 x 10^{-13 J}

• 1.21 x 10 ³⁵ J

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Electrons are emitted when light of sufficient energy strikes the surface of metal.  This is best described as

• the photoelectric effect
• Einstein's theory of relativity
• Bohr model of atom
• Quantum mechanical model of atom

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All objects in the universe attract each other through gravitation force is called...

• The Law of Universal Gravitation
• The Law of Conservation of Momentum
• The Law of Thermodynamics
• The Law of Monty the Snake

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