Dielectric constant of water is?

Related Mcqs:

1. The salinity of sea water is determined by the amount of common salt (Sodium Chloride) in __________ of sea water.

   A. 1 gram
   B. 10 grams
   C. 1 kg
   D. 10 kg

2. Water is heated in a kettlE. The inside water is heated by convection. A person sitting near the fire receives heat by ________?

   A. Conduction
   B. Convection
   C. Radiation
   D. Reflection
   E. None of these

3. Why are soft drink made with chilled water rather than water at room temperature?

   A. Ingredients dissolve better in chilled water
   B. Chilled water enhances the taste
   C. Chilled water attracts more carbon dioxide 
   D. Chilled water is more hygienic

   Submitted by: Ashfaque Ali Khoso

4. For seeing objects at the surface of water from a submarine under water, the instrument used is ________?

   A. Periscope
   B. Telescope
   C. Kaleidoscope
   D. Spectroscope

   Submitted by: Rashid Mehmood

5. Sea water (Salt water) freezes at ?

   A. Same temperature as fresh water.
   B. Slightly higher temperatures than fresh water.
   C. Slightly higher temperature than fresh water.
   D. Sea water does not freeze

   Submitted by: Mansoor Ahmed Suhag

6. Underground water and the water on the earth’s surface is called ?

   A. Mezosphere
   B. Ionosphere
   C. Hydrosphere
   D. None of these

   Submitted by: Haziq

7. For a fixed mass of gass at constant temperature, if we decrease volume, the pressure will _________?

   A. also decrease
   B. increase
   C. remains constant
   D. none of these

8. A boy sitting in an open car moving with the constant speed throws a ball straight up into the air. The ball falls _________?

   A. behind him
   B. in front of him
   C. into his hand
   D. by his side

   Submitted by: Malik Asghar Hussain

9. According to the theory of relativity, which of the following always remains constant ?

   A. Length of an object
   B. Time
   C. Space
   D. Velocity of light

   Submitted by: Malik Asghar Hussain

10. Which law states that the volume of a given amount of gas held at constant pressure is directly proportional to the Kelvin temperature?

    A. Charles’ Law
    B. Avogadro’s Law
    C. Graham’s Law
    D. Boyle’s law

    Submitted by: Malik Asghar Hussain