Class X

Boiling point of water is
  1. 0 °C
  2. 100 °C
  3. 200 °C
  4. 50 °C
 Physical quantities are also known as
  1. Derived quantities
  2. Base quantities
  3. Professional quantities
  4. Energetic quantities
Compressions are formed where air pressure is
  1. Higher
  2. Lower
  3. Normal
  4. zero
"Virtual image is upright", this statement is
  1. Right
  2. Wrong
  3. May be right or may be wrong
  4. Neither right nor wrong
 Mid-point between lens surface and principle axis is termed as
  1. Midway center
  2. Focal center
  3. Focal point
  4. Optical center
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