One Kilometer is equal to _____.

1. 1. 100 m
   2. 500m
   3. 1000m
   4. 10000m

Which of the following instrument is used to measure height?

1. 1. Hydrometer
   2. Hygrometer
   3. Altimeter
   4. Sphygmomanometer

As we go up in the air _____.

1. 1. Atmospheric pressure increases
   2. Atmospheric pressure decreases
   3. Atmospheric pressure does not change
   4. Atmospheric pressure becomes zero at the height of 1 KM

Electric drill converts the electrical energy into kinetic energy, sound energy and _____.

1. 1. Potential
   2. Heat
   3. Electrical
   4. Nuclear

The atomic radius decreases in a period due to _____.

1. 1. decrease in nuclear attraction
   2. increase in nuclear attraction
   3. decrease in number of electrons
   4. none of the above

If electron in hydrogen atom jumps from lower to higher orbit then which quantity will decrease?

1. 1. Potential
   2. Total energy
   3. Kinetic energy
   4. Radius

The process in which AC is converted into DC is called _____.

1. 1. Amplification
   2. Rectification
   3. Modulation
   4. Oscillation

When we heat magnetic material then its magnetism _____.

1. 1. decreases
   2. increases
   3. remains same
   4. infinity

Center of mass is point in body which shows only _____.

1. 1. Rotational motion
   2. Zigzag motion
   3. Translation motion
   4. Both A and B

Which of the following is not a feature of solids?

1. 1. Definite mass and volume
   2. Frequent fluidity
   3. Rigidity
   4. Definite shape