GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 141

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 141

1401). When a cube of ice floating in a beaker of water melts, the level of water in the beaker
A). Increases
B). Decreases
C). Remains the same
D). Increases initially but then falls down

Answer: Remains the same


    
1402). If a particle could move with the velocity of light, the value of its kinetic energy would be
A). zero
B). 0.5 C
C). C
D).∝

Answer :  ∝

 

1403). Size of a nucleus depends on
A). Number of neutrons
B). Number of protons
C). Number of nucleons
D). Number of nucleons and electrons

Answer: Number of nucleons


    
1404). Match the following:
List - I                                               List - ll
a) Amp-m^2                               1) Current density
b) Newton / amp-metre                2) Magnetic flux density
c) Coulomb/m^2                         3) Electric displacement
d) Amp/m^2                               4) Magnetic displacement

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

Answer: 4 2 3 1


    
1405). A person is sitting in a travelling train and facing the engine. He tosses up a coin and the coin falls behind him. It can be concluded that the train is:
A). Moving backward with uniform speed
B). Moving forward with uniform speed
C). Moving forward and suddenly losing speed
D). Moving forward and suddenly gaining speed

Answer: Moving forward and suddenly losing speed



1406). Choose the correct answer from the following.
The instrument used to measure the minute distance is:
A). Metre scale
B). Inch tape
C). Vernier Caliper
D). Micrometer gauge

Answer: Micrometer gauge


    
1407). Hydrogen filled balloon flies high in air because
a) Weight of the balloon is much lesser than the weight of the air it displaces.
b) Weight of the balloon is greater than the weight of air it displaces.
c) The difference between the weights doesn't give the power to lift.
d) Density of air is 14 times greater than hydrogen.
A). a is wrong
B). b is correct
C). c is correct
D). both a and d is correct

Answer: both a and d is correct


    
1408). Assertion (A): Electric fish generates powerful electric shocks.
Reason (R): It lives in Orinoco river.
A). Both (A) and (R) are true and (R) is the correct explanation of (A)
B). Both (A) and (R) are true but (R) is not the correct explanation of (A)
C). (A) is true, but (R) is false
D). (A) is false but (R) is true

Answer: Both (A) and (R) are true but (R) is not the correct explanation of (A)


    
1409). The listener is at rest with respect to the sources of sound. A wind starts blowing along the line joining the source and the observer which of the following quantities do not change.
A). Frequency and wave length
B). Velocity and time period
C). Velocity and wave length
D). Frequency and time period

Answer: Frequency and time period


    
1410). Assertion (A): Rice cooker takes longer time to cook at Mount Everest.
Reason (R): As altitude increases pressure increases
A). A is true R is false
B). A is false R is true
C). A and R are false
D). A and R are true

Answer: A is true R is false