Name of force between two masses ?
A. Gravitational force
B. Radiation force
C. Both
D. None of these
Why does the sky appear blue?
A. Due to clouds
B. due to reflection of light
C. due to scatering of lights
D. because sun light is blue
MRI works by Using?
A. Radio waves & Magnetic field
B. -
C. -
D. -
What is combustible gas ?
A. Hydrogen
B. Oxygen
C. Nitrogen
D. None of These
Which photoreceptors detect color?
A. Cones
B. Triangle state
C. rectangle state
D. None of these
When atmospheric pressure decrease which thing happen:
A. Rain, wind
B. pleasant condition
C. intense condition
D. All of these
Which is present in all viruses ?
A. Guanine
B. Lactose
C. Fructose
D. None of these
Mineral used in the cement industry of Pakistan ?
A. Graphite
B. Calcium
C. Limestone
D. None of these
Which element is liquid at room temp:
A. Bronze
B. bromine
C. Iron
D. None of these