Lakshya Education MCQs

Question: The age of most ancient geological formations is estimated by
A.Ra - Si method
B.Potassium - argon method
C.C14 method
D.Uranium - lead method
Answer: Option C

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More Questions on This Topic :

Question 1. The isotope of uranium capable of sustaining chain reaction is
  1.    U-235
  2.    U-245
  3.    U-239
  4.    U-238
Answer: Option A
Question 2. Who suggested that most of the mass of the atom is located in the nucleus?
  1.    Thompson
  2.    Bohr
  3.    Rutherford
  4.    Einstein
Answer: Option C
Question 3. 'No two electrons in an atom can have the same set of four quantum numbers' is stated in
  1.    Newton's law
  2.    Bohr's law
  3.    Aufbau principle
  4.    Pauli's exclusion principle
Answer: Option D
Question 4. Which of the following has a least penetrating power?
  1.    All have same penetrating power
  2.    Beta Particles
  3.    Alpha particles
  4.    Gamma rays
Answer: Option C
Question 5. What is the wavelength of visible spectrum?
  1.    8500 - 9800 angstrom
  2.    7800 - 8000 angstrom
  3.    3900 - 7600 angstrom
  4.    1300 - 3000 angstrom
Answer: Option C
Question 6. Which of the following shows the masses of the three elementary particles in decreasing order?
  1.    Leptons, Baryons, Mesons
  2.    Mesons, Baryons, Leptons
  3.    Baryons, Mesons, Leptons
  4.    Leptons, Mesons Baryons
Answer: Option C

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