Lactometer is a type of Hydrometer which is used to measure the specific gravity of _________?

A. Honey
B. Water
C. Milk
D. olive oil
E. None of these

The temperature of the dead body is_______________?

A. 0 ‘C
B. 37 ‘
C. Room Temperature
D. Temperature of the place where it is kept
E. None of these

German Silver is an alloy of___________?

A. Zn + Ni
B. Cu + Zn
C. Cu + Ni
D. Cu + Sn
E. None of these

A. Energy
B. Time
C. Power
D. Distance
E. None of these

A. Chemical Reaction
B. Nuclear reaction
C. Fission nuclear reaction
D. Fusion nuclear reaction
E. None of these

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

A. 6 feet
B. 12 feet
C. 4 feet
D. 3 feet
E. None of these

When a ray of sunlight enters a dark room , its straight path become visible because of dust particles hanging in the air. It is because light is _________?

A. Visible
B. Transparent
C. Invisible
D. opaque
E. None of these

It is possible to recognize a person in the dark by simply hearing his unique voice . It is because of the_______?

A. pitch
B. Frequency
C. Time period
D. Quality
E. None of these