GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 138

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 138

1371). When the heat is conducted from one place to another place without any medium, then such a process of heat conduction is known as
A). conduction of heat
B). convection of heat
C). vaporization of heat
D). radiation of heat

Answer: radiation of heat


   
1372). The potential at which a silicon diode starts to conduct is
A). 0.3 V
B). 0.7 V
C). 1.4 V
D). 2.8 V

Answer: 0.7 V


   
1373). The angular speed of a planet revolving round the sun depends
A). on the radius of the orbit only
B). on the mass of the planet only
C). on both the radius and mass of the planet
D). inversely on the square root of the cube of the radius of the orbit only

Answer: inversely on the square root of the cube of the radius of the orbit only


   
1374). If power of a lens is -0.5 dioptre focal length and type of lens is
A). 2 m, concave
B). 2 m, convex
C). 50 cm, concave
D). 50 cm, convex

Answer: 2 m, concave


   
1375). Find the odd one out:
Related with heat in one action.
A). Conduction
B). Convection
C). Absorption
D). Radiation

Answer: Absorption



1376). Match the following
List - I                      List - II
a) Force                    1) Watt
b) Momentum            2) Joule
c) Power                   3) Kg.m.s^−1
d) Energy                 4) Newton

a b c d
A). 4 1 2 3
B). 3 2 1 4
C). 3 1 2 4
D). 4 3 1 2

Answer: 4 3 1 2


   
1377). Choose the correct one:
If kerosene, water and mercury is taken in a same glass tumbler. arrange the position of them from the top to the bottom of the glass tumbler
A). Mercury, Kerosene, Water
B). Kerosene, Water, Mercury
C). Water, Mercury, Kerosene
D). Kerosene, Mercury, Water

Answer: Kerosene, Water, Mercury


   
1378). The percentage of Gold in 22 Carat is
A). 0.9167
B). 0.75
C). 0.6791
D). 0.9617

Answer: 0.9167


   
1379). Match the physical quantities in column l with their SI units in column ll and choose the correct answer using the below given codes.
Column - l                                         Column ll
a) Pressure                               1) Kgm^−3
b) Surface tension                     2) Nm^−1
c) Surface energy                      3) Jm^−2
d) Density                                 4) pa

Codes:
a b c d
A). 1 2 4 3
B). 4 2 3 1
C). 2 3 4 1
D). 3 4 1 2

Answer: 4 2 3 1


   
1380). Velocity of light is
A). More in air
B). More in glass
C). Same in air and in glass
D). Neither (A) nor (B)

Answer: More in air