The temperature of the dead body is_______________
(A) 0 âC
(B) 37 â
(C) Room Temperature
(D) Temperature of the place where it is kept
(D) None of these
The Continent Antarctica lies at the__________
(A) North pole
(B) South pole
(C) middle of the earth
(D) Equator
(D) None of these
German Silver is an alloy of___________
(A) Zn + Ni
(B) Cu + Zn
(C) Cu + Ni
(D) Cu + Sn
(D) None of these
In a fission nuclear reaction , a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear reaction is called
(A) Chemical Reaction
(B) Nuclear reaction
(C) Fission nuclear reaction
(D) Fusion nuclear reaction
(D) 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
(D) None of these
A six feet tall lady wants to see her full image in a plane mirror The minimum length of the mirror will be
(A) 6 feet
(B) 12 feet
(C) 4 feet
(D) 3 feet
(D) 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
(D) 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
(D) None of these
The echo (reflected sounD will be distinctly heard only at ordinary temperatures if the distance of the reflecting surfaces from the source of sound is at least ________
(A) 1120 ft
(B) 120 ft
(C) 56 ft
(D) 100 ft
(D) None of these