Bioinstrumentation & Research Methodology [ Integrated] unit-2

What do spectroscopes do?

• Collect light to identify elements

• Refract light

• Absorb light

• Transmit light

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Emission of light from an atom occurs when an electron

• drops from a higher to a lower energy level.
•    jumps from a lower to a higher energy level.   
•    moves within its atomic orbital.
• falls into the nucleus.

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The ground state is the highest energy state of an atom.

• True
• False

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The _______________ determines the color of visible light. 

• wavelength
• speed
• amplitude
• light

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NGSS.HS-PS4-1

______________ is the energy that can travel through space in the form of waves. 

• telescopes
• electromagnetic spectrum
• observatory

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NGSS.HS-PS4-1

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Which of the following type of electromagnetic radiation has the most energy

• infrared
• ultraviolet
• microwaves
• radiowaves

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NGSS.HS-PS4-1

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Which of the following type of electromagnetic  radiation has the longest wavelength

• infrared
• ultraviolet
• microwaves
• radiowaves

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NGSS.HS-PS4-1

For an electron to change from ground state to an excited stated it must...

• Absorb energy
• Release energy

Which has the SHORTEST wavelength and, therefore, the highest frequency/most energy

• Radio waves
• Ultraviolet Rays
• Gamma Rays
• X-rays

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NGSS.HS-PS4-1

When electrons of an element reach an "excited" state, ___ lines are produced.

• dark

• emission (bright)

• continuous

• invisible

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NGSS.HS-PS4-3

NGSS.HS-PS1-2