Quartz crystal in quartz watches work on the principle called?

Related Mcqs:

1. The chemical name of quartz is:

   A. Silicon Dioxide
   B. Stannous Oxide
   C. Aluminium Oxide
   D. None

2. The principle used in radar is the same as that of Sonar. In radar we use radio waves ; whereas in sonar we use ?

   A. red waves
   B. Infrared waves
   C. Ultrasonic
   D. super sonic
   E. None of these

3. Atomic power plant works on the principle of?

   A. fission
   B. fusion
   C. thermal combustion
   D. combined effect of all the above three

   Submitted by: Malik Asghar Hussain

4. A transformer works on the principle of _______________?

   A. Self induction
   B. Mutual induction
   C. Generator
   D. Inverter

   Submitted by: Malik Asghar Hussain

5. Persistance of vision is the principle behind?

   A. Camera
   B. Spectroscope
   C. Cinema
   D. Periscope

   Submitted by: Malik Asghar Hussain

6. Washing machine is working on the principle of?

   A. Photoelectric effect
   B. Electric-magnetic induction
   C. Centrifugation
   D. None of these

   Submitted by: fahad mehsud

7. Uncertainty Principle was given by?

   A. Werner Heisenberg
   B. Farady
   C. John locke
   D. None of these

   Submitted by: fahad mehsud

8. Hydrogen bomb is based on the principle of ________ ?

   A. Nuclear fusion
   B. Artificial radioactivity
   C. Natural radioactivity
   D. Nuclear fission

   Submitted by: Rashid Mehmood

9. SONAR is based on the principle of___________?

   A. Echo
   B. reverberation
   C. resonance
   D. None of these

   Submitted by: Abid Otho

10. On which disease did Robert Koch work?

    A. Tuberculosis
    B. Cholera
    C. Malaria
    D. Diabetes

    Submitted by: ABDUL HAYEE