German Silver is an alloy of___________?

A. Zn + ni
B. Cu + zn
C. Cu + ni
D. Cu + sn

The temperature of the dead body is_______________?

A. 0 ‘c
B. 37 ‘
C. Room temperature
D. Temperature of the place where it is kept

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

A. Honey
B. Water
C. Milk
D. Olive oil

Twinkling of stars is caused by ?

A. Reflection of light
B. Polarization of light
C. Refraction of light
D. Interference of light

A nuclear reactor is a device used to carry out controlled nuclear reaction whereas GM counter is a device used to detect?

A. Current
B. Voltage
C. Nuclear radiation
D. Power

Myopia is a defect of Human eye. it can be corrected by using a lens called?

A. Convex lens
B. Concave lens
C. Cylindrical lens
D. Plano convex lens

The instrument which i specially design for recording earth quake wave is called seismograph which measure earth quake waves on a ____________?

A. Diatonic scale
B. Fahrenheit scale
C. Richter scale
D. Celsius scale

Cobalt is a material which is ?

A. Strongly attracted by a magnet
B. Not attracted by a magnet
C. Not a magnet
D. Weakly attracted by a magnet

Total volume of blood in a normal adult human being is

A. 5-6 liters
B. 3-4 liters
C. 8-10 liters
D. 10-12 liters

Red blood corpuscles are formed in the____________?

A. Liver
B. Bone marrow
C. Kidneys
D. Heart