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The ejection of electrons when a metal surface is irradiated is known as

  • Black body radiation
  • Photoelectric effect
  • Zeeman effect
  • Atomic spectrum

Answer: Option B

Similar Questions :

1. What is Calcium sulphate ?

  • epsom salt
  • blue vitriol
  • gypsum salt
  • potash alum

Answer: Option C

2. Which of the following gas is used in cigarette lighters ?

  • Butane
  • Propane
  • Methane
  • Ethane

Answer: Option A

3. Which have the maximum density ?

  • Water
  • Benzene
  • Ice
  • Chloroform

Answer: Option A

4. Biogas majorly contains ?

  • Ethane
  • Methane
  • Hydrogen
  • CO

Answer: Option B

5. The isotope atoms differ in ?

  • number of neutrons
  • atomic number
  • number of electrons
  • atomic weight

Answer: Option A

Explanation:

Important to note that isotope atoms have same atomic number.

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