GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 062

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 062

 

611). Which one of the following statements given below is incorrect?
A). X-rays exhibit the phenomenon of interference
B). X-rays ionise the gases through which they pass
C). X-rays affect photographic plates
D). X-rays are charged particles

Answer: X-rays are charged particles


   
612). The phenomenon of radioactivity was discovered by
A). Madam Curie
B). Becquerel
C). Juliot Curie
D). Roentgen

Answer: Becquerel

   
613). Which falls down fastest in vacuum, a feather, a wooden or a steel ball ?
A). wodden ball
B). feather ball
C). steel ball
D). all will fall down at the same speed

Answer: all will fall down at the same speed


   
614). The normal temperature of human body on the Kelvin scale is
A). 280
B). 290
C). 300
D). 310

Answer: 310


   
615). What is the normal body temperature, of a human body?
A). 39.5 ° C
B). 35.8° C
C). 37° C
D). 98.6° C

Answer: 37° C



616). A micron is equivalent to
A). 1/100 mm
B). 1/100 cm
C). 1/1000 cm
D). 1/1000 mm

Answer: 1/1000 mm

   
617). The temperature at which centigrade and Fahrenheit scales give the same reading
A). 30° C
B). 40° R
C). 40° C
D). 40° F

Answer: 40°C


   
618). Why do we prefer white clothes in summer?
A). they are poor absorbers and poor emitters
B). they are good absorbers and poor emitters
C). they are poor absorbers and good emitters
D). none of these

Answer: they are poor absorbers and good emitters


   
619). A bob executes simple harmonic motion. Which value is maximum when the bob is in the mean position?
A). time period
B). mass of the particle
C). amplitude
D). velocity

Answer: velocity


   
620). The scientist who discovered the relation between electricity and magnetic effects is
A). Oersted
B). Ampere
C). Laplace
D). ohm

Answer: Oersted