Quiz on Photometry and Atomic Spectroscopy

What is the relationship between energy and wavelength in light?

• Energy is equal to wavelength

• Energy is independent of wavelength

• Energy is inversely proportional to wavelength

• Energy is directly proportional to wavelength

Which of the following is NOT a type of atomic spectroscopy?

• Chromatography spectroscopy

• Absorption spectroscopy

• Luminescence spectroscopy

• Emission spectroscopy

What is the main purpose of a flame photometer?

• To measure the temperature of flames

• To analyze the concentration of metal ions

• To filter out unwanted emissions

• To produce light for spectroscopy

Which element emits a yellow flame at 589 nm?

• Potassium

• Sodium

• Calcium

• Lithium

What is the principle behind flame photometry?

• Measurement of gas concentration

• Measurement of flame temperature

• Measurement of emitted light intensity

• Measurement of light absorption

What is the role of the nebulizer in a flame photometer?

• To filter light emissions

• To send solution into the flame

• To maintain flame temperature

• To measure light intensity

In atomic absorption spectroscopy, what does the intensity of absorption indicate?

• The temperature of the flame

• The concentration of the sample

• The type of metal present

• The wavelength of light used

Which of the following is a disadvantage of flame photometry?

• It is a quick and economical method

• It cannot directly detect inert gases

• It provides detailed molecular structure

• It can analyze solid samples

What is the first step in the working procedure of a flame photometer?

• Prepare the sample solution

• Record galvanometer readings

• Calibrate the flame

• Insert color filters

What is the purpose of the photo-detector in a flame photometer?

• To produce light

• To filter wavelengths

• To measure emitted radiation

• To maintain flame temperature